Yuga Aoyama/Synopsis

History
Yuga Aoyama was born without a Quirk, developing an inferiority complex with respect to other people, to the point of asking his parents why he is so different from everyone. Not wanting his son to suffer discrimination for being Quirkless and wanting to support his dreams, his desperate parents managed to get in contact with All For One, who agreed to give Yuga a Quirk.

All For One transferred Navel Laser to Yuga. Unfortunately, because Yuga's body is inappropriate for the Quirk, the beams involuntarily leaked out from his navel. To explain his incompatibility with the Quirk, Yuga often justifies himself by saying that it is due to a birth defect. Later, Yuga received a special belt created especially for him to prevent his powers from leaking out, an item he would wear throughout his childhood.

The price to pay All For One to help them is that both Yuga and his parents were trapped under his influence, and forced to work for him for fear of possible retaliation for not doing so. With no choice but to be All For One's double agent, Yuga has never stopped feeling crushed with guilt.

Entrance Exam Arc
Yuga is first seen among the students waiting for the U.A.'s Entrance Exam to start. When the exam begins, Yuga comes across a 1-point Villain Bot, defeating it with his Navel Laser. After thanking Izuku Midoriya for his "team-play", he tells him they will not cross paths again and flees the area to collect more points.

Yuga obtains enough points to be admitted to the hero-course at U.A..

Quirk Apprehension Test Arc
Yuga uses his Navel Laser to run the 50m in 5.51 seconds and for the standing long jump. When Izuku Midoriya has his Quirk restrained by Shota Aizawa, Class 1-A homeroom teacher, Yuga gives Ochaco Uraraka comforting words by stating he'll be by her side if Izuku is expelled as she is confused and can't recall his name. However, Yuga is shocked when Izuku uses his Quirk to throw the ball high in the air though states it's not stylish.

Yuga ranked 14th in the test.

Battle Trial Arc
Yuga watches the Battle Trial between the teams of Izuku Midoriya and Ochaco Uraraka against Tenya Ida and Katsuki Bakugo. He is impressed with Izuku's efforts against Katsuki during their fight.

Yuga is teamed up with Mina Ashido to face Rikido Sato and Koji Koda. During the match, Mina accidentally splashes some of her acid on Yuga's cloak, damaging it to his annoyance. Mina apologizes for it

U.S.J. Arc
As All For One's plant in the school, Yuga reports on the exercise that Class 1-A will conduct with All Might in the Unforeseen Simulation Joint. With this information, the League of Villains prepares an attack with the objective of killing All Might. However, since the time limit to use his Quirk was running out, All Might cannot be present and asks Shota Aizawa and Thirteen to take care of the exercise.

Commanded by Tomura Shigaraki, the League of Villains invade the U.S.J., but when they verify that All Might is not there, they decide to kill the students and teachers. Kurogiri uses his Quirk to warp the students to different locations in the U.S.J. where they face the villains that await them there, but Yuga is transported to an unknown place where he remains hidden during the Villains' attack.

While he remains hidden, his classmates and teachers confront the villains, until finally, All Might, and later, the rest of the U.A. staff arrive to help them, managing to defeat and capture all the villains except Tomura and Kurogiri, who manage to escape. Yuga reappears after everyone is safe. Nobody knows what he was doing nor where he was, but no one seems to care.

U.A. Sports Festival Arc
On the occasion of the U.A. Sports Festival, Yuga trains for the event. During the first test, as soon as the Obstacle Race start, Yuga avoids Shoto's ice that freezes the vast majority of runners. Yuga manages to finish the race, finishing in position 42, just the last of those admitted to participate in the next trial, and seems to have retained a fair amount of damage for using his Quirk.

He later is among the many asking to be on Katsuki Bakugo's team (though Yuga, instead of asking, assumes that Katsuki would select him), but Yuga is forced to join Hitoshi Shinso's team, along with Mashirao Ojiro and Nirengeki Shoda, when Hitoshi uses his brainwash on him. His team places third, thanks to Hitoshi stealing the points from the Tetsutetsu's team, allowing him to participate in the final event, which is a tournament. When Mashirao decides to resign, Yuga puts his hand on his shoulder and, despite knowing that he was being manipulated by Hitoshi, says that he will not give up. Yuga's opponent in the first round of the tournament is Mina Ashido.

Yuga faces his opponent, Mina, in his first round match. Once the battle starts, Yuga attacks her with his laser, but Mina dodges his attacks and manages to launch a splash of acid at his belt, what causes it to start to malfunction. Yuga panics, and Mina attacks him with a one-hit K.O to his jaw, knocking him out and eliminating him from the tournament.

Yuga along with his class watches the closing ceremony of U.A.'s Sports Festival.

Vs. Hero Killer Arc
Two days after the Sports Festival, Yuga is in class. During the Hero Informatics Period, Class 1-A has to decide on Hero Names. Yuga writes down and presents his: Shining Hero "I can not stop twinkling." which shocked his classmate using a sentence as his Hero Name Midnight criticizes the name, thinking it is too long. Midnight suggest he shorten it to Can't Stop Twinkling.

After Class 1-A have finished formulating their Hero names, Yuga is given a list of 40 workplaces in order to choose a workplace that he would like to train at. On the day of the workplace training, Yuga is at the train station with his class so that he can go to the workplace of his choice by train.

Final Exams Arc
On the day of the exercise test, Mr. Principal reveals that Class 1-A will be fighting against U.A.'s teachers in their exercise test. Yuga is paired with Ochaco Uraraka and they must face Thirteen in their test exercise.

Yuga, Ochaco and Thirteen arrive in an uninhabited city where Class 1-A's test exercise will take place. In the city, Thirteen explains the 30-minute test; Ochaco and Yuga must either handcuff her or one of them must escape the battlefield within 30 minutes in order to win and pass the test. The test begins.

Ochaco and Yuga reach the escape gate but before they can go through it, Thirteen creates a Black Hole, causing the duo to hold onto a guardrail to prevent themselves from being sucked in. Yuga fires his Navel Laser from his knees (thanks to his Hero Costume) at Thirteen but the attempt fails as Thirteen easily sucks away the lasers.

Ochaco tries to think of a plan, causing Yuga to surmise that Ochaco is thinking about what Izuku would do; Yuga then asks Ochaco if she likes Izuku, which shocks Ochaco and makes her blush, causing her to let go of the guardrail out of embarrassment. As a result, Ochaco gets drawn towards Thirteen, much to their shared surprise. Facing Thirteen directly, Ochaco instinctively uses her combat skills learned from Gunhead and manages to handcuff Thirteen, allowing her and Yuga to pass the practical test.

Back in class at U.A., Yuga learns that he passed the written test and will go with his classmates to the forest lodge which is a boot camp. Yuga along with his class go to Kiyashi Ward Shopping Mall to buy necessities for the forest lodge.

My Hero Academia: Two Heroes
At some point Yuga arrives on I-Island.

Yuga hangs out with the rest of his class after the I-Island Expo opens up.

Forest Training Camp Arc
Due to a shopping center incident, where Izuku had an encounter with Tomura, Shota informs Class 1-A that the destination for their lodge trip has been changed and the new destination will only be announced on the day of the event. The first semester has come to a close and summer break has begun.

Following the end of the semester, Yuga is invited by Deku to participate in an endurance training session, along the rest of Class 1-A boys. When Katsuki arrives and challenges Izuku, the boys opt to compete against each other by sprinting down the pool. When is Yuga turn, he tries to reach the other end of the pool using his Navel Laser without touching the water at all. However, in the middle of the flight, he begins to feel a intense pain in his stomach, causing him to deviate and collide with Hanta, who also is trying to reach the other side using his Quirk without getting in the pool. Both students fail into the swimming pool. Shoto wins the race.

After this, all Class 1-A prepare to watch the final race between Izuku, Katsuki and Shoto, but before they can start, Shota arrives and cuts their Quirks off due to their time limit for the pool expiring, kicking all the students out of the pool area.

On the day of the summer camp, they are informed that the new destination will be a mountainous region, owned by the professional Hero Team, the Wild, Wild Pussycats, where they will undergo reinforcement training to strengthen and upgrade their Quirks which will also allow Class 1-A to obtain their temporary licenses. Once he knows the location, Yuga makes contact with the League of Villains again, and informs them about it.

During the trip to the place, Class 1-A’s bus stops for a restroom break, where they meet Pixie-Bob and Mandalay, who challenge the students to reach base camp past the forest in three hours. Then, all Class 1-A is forcibly thrown into The Beast's Forest by Pixie-Bob's Quirk.

To reach their destination, they must traverse the forest, which is inhabited by dozens of hostile earth monsters created by Pixie-Bob. The Students work together to fight their way through the forest. Yuga uses his Quirk to destroy the clay creatures. The journey through the forest to the cabin takes them around eight hours before finally arrive at the facility, battered and tired. Class 1-A fetch their luggage from the bus and put it in their rooms, and later go to the dining hall and the Pussycats serve dinner.

The next morning, Class 1-A are outside the training camp cabin. Shota greets his students and tells them that they will undergo reinforcement training to strengthen and upgrade their Quirks. Yuga trains to get his body used to Navel Laser so that he can keep using it even if his stomach hurts and to increase the range of his laser.

On the night of the third day of training, Yuga is paired up with Momo for a test of courage presented by the Pussycats. Minoru tries to trade partners with Yuga but he refuses. Class 1-A students traverse the forest while Class 1-B students try and scare them in the dark. Their fun event is interrupted by the arrival of the League of Villains' Vanguard Action Squad. The forest is filled with poison gas that leaves most students unconscious.

Momo creates gas masks and rushes through the forest, handing them out to all the students. She joins up with Yosetsu so he can guide her to the students in Class 1-B. Momo ask Yuga to watch over the unconscious Kyoka and Toru and take them back to the facility. Near the Vanguard Action Squad's rendezvous point, Yuga hides behind a bush along with Kyoka and Toru.

Yuga contemplates on what to do because he follows Momo’s instructions, but Dabi and Twice’s presence are preventing him from doing that. Dabi seems to spots the bush Yuga is hiding behind, much to Yuga’s fear. Dabi prepares to go and check, however, he stops after Twice informs him that they must also call back Nomu since he only responds to Dabi. Yuga is relieved that Dabi did not discover him.

Izuku, Mezo and Shoto land along with Mr. Compress at the Vanguard Action Squad's rendezvous point; they engage in battles against Himiko and Twice until Kurogiri arrives to retrieve the Vanguard Action Squad. Mr. Compress reveals that he hid the real marbles containing Fumikage and Katsuki in his mouth. Mr. Compress slowly enters Kurogiri's Warp Gate. Suddenly, Yuga fires his Navel Laser at Mr. Compress's face, breaking his mask and causing Mr. Compress to spit out Katsuki and Fumikage.

Thanks to Yuga's actions, Mezo manages to rescue Fumikage, but Dabi grabs Katsuki's marble before Shoto can reach it. Dabi, Mr. Compress and the captured Katsuki teleport away from the training camp.

Hideout Raid Arc
After the capture of Katsuki, the training camp ends and Yuga returns home. Two days afterwards, Yuga visits Izuku in the hospital. After Eijiro and Shoto state their intentions to save Katsuki themselves, Yuga is also against the idea of attempting to rescue Katsuki along with the majority of the class; Yuga suggests that they leave Katsuki’s rescue to the Pro Heroes since they have been prevented from partaking in combat, to which Fumikage agrees with Yuga.

Yuga watches and fears the battle between All Might and All For One on television along with his mother. After All For One is defeated, Yuga is relieved, believing that his days as a double agent are over and he can finally have real friendships with his classmates.

Provisional Hero License Exam Arc
Following Katsuki’s rescue and the retirement of All Might, Nezu transformed U.A. into a boarding school in order to protect the students. The Height Alliance was built in just three days.

Shota Aizawa meets with his students outside of the building. He states they must start preparing to get provisional hero licenses like they had planned to during the training camp. Then, Shota scolds the students because he knows that five f them were present at the site of Katsuki Bakugo's rescue and took it upon themselves to rescue him. He also knows that the rest of Class 1-A except Katsuki, Toru, and Kyoka, also knew about their plans but did nothing to persuade them. He further more says he would have expelled everyone but Katsuki, Toru and Kyoka from the school, if it weren't for All Might's sudden retirement.

Class 1-A arrange their luggage in their respective bedrooms. Later that night, the boys of Class 1-A are in the common space on the first floor. The girls of Class 1-A show up and Mina Ashido suggests a room showcasing competition. When they check out Yuga’s room, it has an entire set of mirrors of different sizes, as well a large portrait of himself, a disco ball and an armor. They say it is very bright with multiple lights, but Aoyama calls it "dazzling". Mina and Toru completely saw it coming. Later, when they check Kyoka's room, Yuga and Denki comment on how it wasn't ladylike, leading to Kyoka to attack both of them.

The following day, Shota tells to Class 1-A that their next goal is to obtain their "Provisional Hero Licenses" Shota announces that they will be working on developing their own special moves, much to the class' excitement. The class visits the Gym Gamma, where Cementoss creates a training ground for the class with Ectoplasm using his Quirk to create villains for the class to practice their moves on.

Yuga trains his Quirk until the day of the Provisional Hero License Exam. Outside of the National Dagobah Arena, Class 1-A meets with students from Shiketsu High School and Ketsubutsu Academy High School. Before the exam starts, Yokumiru Mera from the Hero Public Safety Commission explains that the first part of the exam involves thinning out the amount of people who can succeed by playing a game, where people put three targets on their body and are given six balls to throw at the other examinee's marks. Those whose targets have been hit are disqualified. Participants need to eliminate two students to move on to the next phase of the exam.

As the exam starts, the students of the other schools focus entirely on U.A. However, Class 1-A is able to defend themselves and avoid being hit by the balls. Yo Shindo tells his fellow classmates that he will shatter their solid defense, and uses his Vibrate Quirk on the ground, unleashing a powerful earthquake that completely shatters the ground and and causing members of class 1-A to disperse. Due to this attack, Yuga gets scattered, and have to defend himself from the attacks of the rest of the participants.

The situation becomes complicated for Yuga, since two of his targets were hit and only had one before being eliminated, so he decides to hide among the rocks. Tenya, who was looking for her classmates, found Yuga and decided to work with him so that they could find their classmates and pass. However, Yuga was content with the rest of Class 1-A passing ahead of him. Tenya refused to leave Yuga behind as he is the president of Class 1-A and as such it is his duty to support everyone including him.

However, they find themselves in the heat of battle against dozens of examinees from different schools ready to take them out. As Yuga thinks that the situation is bad, Tenya saves him from a stray bullet and tells him not to give up. Tenya tells Yuga that as long as he is able he will do his best to serve his class.

Seeing that he is holding Tenya back, Yuga fires his Navel Laser upwards; Tenya wonders what Yuga is planning. Yuga tells Tenya that he has already lost two targets and does not want Tenya to go down with him and thus decided to use himself as a decoy to attract more examinees which will allow Tenya to out speed and attach his balls to two of them while they are distracted. Yuga admits that his dream is to be equal with everyone else.

Enemy students arrive, but just before they attack Tenya, all the remaining 1-A students make their way towards them, and manage to defeat the other students. On the ground, Yuga is confused as to what is going on; Mina Ashido tells Yuga it is thanks to his Navel Laser that they managed to group up with him and Tenya. The remaining Class 1-A students work together and they begin passing one after the other.

Tenya criticizes Yuga that he is the only one that doesn't see himself on the same level as the others, as he's the beacon that allowed Class 1-A to succeed. Yuga and Tenya eliminate their last targets to fill the final two spots for the first phase. With that, Yokumiru announces the end of the first phase.

Yuga waits in the rest room with his classmates 1-A until the start of the second phase of the exam is announced. On this occasion, the students are expected to rescue H.U.C. employees who will act as victims of a large-scale terrorist attack. To help in the rescue operations, Yuga uses his navel laser to create light so other students can see into dark passageways.. At the end of the exam, Yuga is one of the students who passes the exam, receiving his provisional license.

Shie Hassaikai Arc
The next day, Class 1-A attend the U.A. opening ceremony. After this, at classes, Shota talks about Hero Work-Studies, hero activities done off campus. Three days later, Shota introduces to Class 1-A the best students of U.A. who will teach them about Hero Work-Studies: Mirio Togata, Tamaki Amajiki and Nejire Hado, better known as The Big 3. Despite they reputation, they are actually all a bunch of easygoing eccentrics. Class 1-A get confused when Mirio Togata challenges them all to a fight.

At Gym Gamma, Mirio tells Class 1-A to attack him whenever and wherever they want. Yuga, like his classmates, attacks him, but his Navel Laser slip right through Mirio's body, without harming him. Mirio counterattacks, and in a few minutes he defeats the entire class 1-A, thanks to his Quirk Permeation. While Class 1-A recovers from their defeat, Mirio explains how his Quirk works and advises class 1-A to participate in the Hero Work-Studies, as it will help them improve their career to be heroes, just as it helped him become one of the best students in the U.A.

Remedial Course Arc
Weeks later, after the police raid at the base of Shie Hassaikai, Izuku, Eijiro, Ochaco and Tsuyu return to their dormitories at the school, where Yuga, along the entirety of Class 1-A, is checking to make sure his classmates are doing okay, after their mission.

After a class with Ectoplasm, Izuku and Tenya prepare to go eat lunch, but Yuga approaches Izuku and puts a block of cheese in his mouth and Izuku acts confused and frantic to this situation. Yuga is then refuses Tenya's offer to eat lunch with them. Izuku then states how Yuga's behavior left a strong impact on him, and how Yuga was a man he could never read. Later, Izuku is seen late at night going to sleep as Yuga stares him down as he sleeps through his window.

A while later, Aoyama leaves but used some cheese to say he knows Izuku's secret which he left behind for Izuku as the latter (who was aware of this) gets up and sees the message. The next day, Yuga does his training as he calls out to Izuku and shows him a new move he created: Navel Buffet☆Laser. He also demonstrates a greater mastery of his Quirk by reducing the size of his laser and writing a French phrase on the stone with it, though it causes him severe stomach problems. Seeing his state, Izuku asks the instructor for permission to take Yuga away from training to recuperate before he asks him what he meant in his message. Yuga explained that he is aware of Izuku not being accustomed to his Quirk and reveals that he went through a similar experience.

Yuga goes on detailing his childhood of having to wear a belt to prevent his powers from leaking out and how he noticed it was similar to Izuku's initial lack of control of his before they both overcame it. He then tells Izuku he is not alone in hardships as its better to face them together or they won't excel. His words cause Izuku to smile and thank him for his support before Yuga suffers from another stomach problem. After a few days, he and Izuku become good friends with some of the class noting Yuga's more livelier attitude and his association with Izuku.

U.A. School Festival Arc
Days later, in the classroom, Shota Aizawa announces that U.A. High School will be having a School Festival and tells Class 1-A to pick out a program to perform at the festival. The 1-A students are all brainstorming ideas for the upcoming culture festival, but they do not reach an agreement. Later at Heights Alliance, the entire Class 1-A decides that their school festival program will be a live performance and dance with party space.

The next day, they choose the members that will be part of the music band. Looking for a singer for the band, a few students try out for the position. As it turns out, Eijiro can't get the right genre, Yuga is a falsetto, and Minoru can't sing at all. At the end, they decide that Kyoka will be the singer.

Later, the students decide who will be part of the dance team and the staging team. Yuga ends up being part of both since Mina's plan for Yuga is use him as some kind of human disco ball. He will dance but he will also be responsible for providing lighting effects with which to ambience the music performance and encourage the public.

Class 1-A begins to practice for the festival. After a few days of training, Mina tells Izuku that he is being switched over to the Staging Team from the Dancing Team, to help maneuver Yuga during his part of the presentation, although he will still be able to perform. He is selected since he and Yuga have been getting along as of late. Class 1-A continues to practice until the day of the festival.

The night before the event, Yuga and Izuku find that the rope they will be using to suspend Yuga in mid-air for his part in the routine is now frayed. Not wishing to disturb Momo who had gone to sleep, Izuku says he will go buy a new rope from a store early next morning. During the purchase, Izuku meets two villains who face and defeat, but they delay him for the performance.

Yuga Aoyama is waiting for Izuku to return. Izuku arrives with the new rope. Yuga inquires about Izuku's injuries, to which the latter excuses as having fell. Izuku he cleans up his face before going on stage. No more incidents occur and the music performance of class 1-A ends up being a huge success.

Pro Hero Arc
As November comes to a close, the Wild Wild Pussycats pay a visit to Class 1-A to celebrate Ragdoll's reinstatement.

Not long after training and going to bed to sleep, Yuga wakes up after hearing a loud noise coming from Deku's room. He walks over to Izuku's room, which has the door left open, and finds the room a mess, the bed covers ripped to shreds and Deku clutching his glowing hand, which is coursing with the power of One For All.

Despite this, Yuga thinks that the reason for Izuku's thrashing was that he didn't have enough cheese and wanted more. To keep him from discovering the truth, Izuku decides to let Yuga think he got it right.

Joint Training Arc
Shota Aizawa and Vlad King hold a Joint Training Battle between their classes during the early days of winter. Yuga is placed in a team with Fumikage Tokoyami, and Toru Hagakure and lead by Momo Yaoyorozu, to compete against Class 1-B formed by Kinoko Komori, Shihai Kuroiro, Manga Fukidashi and lead Itsuka Kendo, in the second round of match-ups.

Upon the beginning of the second match, Fumikage uses Dark Shadow to scout out their opponents with Yuga commenting on the increase in range that he can send out Dark Shadow after his Hero Work. However, Dark Shadow gets hijacked thanks to Shihai's Quirk and attacks Fumikage. Shihai exits Dark Shadow and evades two nets created by Momo by merging with the shadows between the pipes.

Shihai mocks Fumikage and moves through the shadows. Class 1-A believes Shihai will target Fumikage, however he sneaks up behind Yuga and grabs him and pulls him away. Fortunately for Yuga, Fumikage had developed a new super move called Black Fallen Angel that allows him to fly, so he soars past Shihai and rescues Yuga from him. Momo tells Yuga to use his Navel Buffet to blast the area with laser beams. The light of the breams disrupts and warps the shape of the shadows and takes away all Shihai's hiding spots. With Shihai unable to hide in any shadows, Momo instructs Toru to grab him but Kinoko uses her Quirk to cover everything in Mushrooms.

Everything goes according to Itsuka's plans. She predicted Class 1-A team would use Yuga's Navel Laser to attack Shihai, without foreseeing that the light would also reveal their location, giving Manga and Kinoko the opening to barrage Class 1-A with their long ranged Quirks. Manga quickly spawns giant text with his quirk, cutting Momo off from the rest of her team. Yuga tries to blast the text with his laser, but he cannot damage it

Shihai moves through the shadows of the mushrooms and captures Yuga again. Fumikage tries to save him but Manga knocks him down with text bullets. Thanks to this, Shihai successfully locks Yuga in jail, eliminating him from the round. Yuga's teammates are still fighting and almost manage to win but, in the end, Class 1-B team are the ones who achieve victory in the second round.

After the match, Yuga watches the remaining rounds and celebrates with his classmates their victory of the Joint Training Battle. Despite their victory over Class 1-B, there are no hard feelings, and both classes hanging out together after the exercise, happily socializing in the common area.

My Hero Academia: Heroes: Rising
During fall, the Hero Public Safety Commission devises the Hero Work Recommendation Project, to help to train the new generation of Heroes due All Might retirement. Weeks go by, and shortly after winter begins, after the Hero Interview Training, Class 1-A is sent to Nabu Island, a remote place in southern Japan. The Pro Heroes who protected the island are about to retire, so the students will take care of the place, performing duties as real heroes acting like their own "Hero Office", until the arrival of new Pro Heroes.

Because Nabu Island is quite isolated from the rest of the country, and therefore far from any villain activity, there has been no notable incident since the last thirty years. For this reason, their work on the island basically involve mostly minor deeds. After receiving a request Yuga and Mina use their Quirks to clearing a highway road blocked by boulders.

At night, after working all day, all Class 1-A students mention that despite they only did minor deeds, this kind of hero work is still hard, even though they're not fighting anyone. The grateful island citizens bring a bunch of food for the kids as a token of appreciation for their help. After dinner, he goes with other students at the onsen bath.

The next day, Yuga is at the office. Mina gets a call from a tourist to help out to report that her suitcase has disappeared, and she dispatches Toru and Yuga to the commercial area, and tricks Minoru into helping too. That same day, Nine and the gang decide to attack Nabu Island, and while Yuga and the others are helping the tourist, they hear explosions coming from outside.

They come out and see the villain called Mummy using his Quirk to create puppets and attack the town, so they prepare to face him while the civilians escape. Minoru and Yuga manage to destroy many of Mummy's puppets, but he creates more and continues attacking. Minoru desperately asks Toru to notify the office about the assault, but she replies that she can't since the communication service is dead.

Fortunately, their classmates were not long in being warned of the attack of the villains across the town. When Minoru, Yuga, and Toru are barely able to fend off the villain's puppets anymore, Katsuki, Eijiro, and Denki arrive at the scene to continue the fight, while Momo, Kyoka, and Mina bring Yuga and his teammates to safety as well as direct the citizens to the safe hold. Mummy ends up being defeated and captured.

Despite this, Class 1-A fails to defeat the remaining villains, and they are forced to retreat. At night, the Class A members regroup at a factory where the rest of the island citizens are currently staying at due to the villain attack. Yuga helps distribute food among the refugees along with several other students. Later, they have a meeting where they discover that the objective of the villain leader, Nine, is to steal the Cell Activation Quirk from a boy named Katsuma.

With this information, they devise a plan to approach them in front and keep civilians safe. The plan is to lure the villains to the furthest corner of the island where ancient castle ruins are. The heroes will engage the villains using the terrain to their advantage and spit the villains apart, so each member has to face several students alone.

The next morning, Nine and his crew arrive at the entrance to the island. Momo Yaoyorozu and Yuga Aoyama are the first line of defense. Seeing the villains approaching, she orders Yuga to start charging the energy of his Navel Laser. When the villains are already in the agreed position, Yuga attacks using his super move "Supernova" to fire a massive naval laser bombardment at the villains. Momo joins him attacking them with two cannons he had created.

Nine blocks their attacks with his Air Wall Quirk, but Slice and Chimera are forced to split up. Momo and Yuga are completely exhausted, but the first phase is accomplished. With Nine's allies driven to designated points, now only the leader remains. Class 1-A begins to attack Nine in turns to force him to use his Quirk as much as possible until he reaches the limit of his abilities. With Momo's help, Yuga continues to contribute to the fight, despite he has already reached the limit with his Quirk, until finally Nine defeats him

While he is unconscious, Izuku and Katsuki manage to defeat Nine, saving the island and its inhabitants in the process. After Class 1-A emerged victorious over the threat, the military and a large number of heroes arrive on Nabu Island, rescuing the civilians and medically treating Class 1-A. The villains are arrested, and Class 1-A continues to stay on Nabu Island to help repair the damage done by Nine and his villains until the Public Safety Commission suspends the program and orders them to be sent home. With the island being repaired by the military and the heroes, Class 1-A boards a ferry to return to the U.A. High School.

Endeavor Agency Arc
Class 1-A participates in a Hero Interview Training taught by Mt. Lady. Days later, the Hero Work Recommendation Project takes place, staying on Nabu Island before returning.

Shortly after they return from Nabu Island, on the night of Christmas Eve, the whole class celebrates Christmas. Then, the class holds a surprise gift exchange. Yuga's gift, which is a photo of himself, ends up in Minoru's hands, much to his dismay.

Due the increase of the villain activity, The Hero Public Safety Commission demand all the students heroes for all academies to undergo practical field training. With Hero Work-Studies back in effect, Yuga, Mina Ashido and Toru Hagakure work under the No. 9 Pro Hero, Yoroi Musha.

Paranormal Liberation War Arc
Winter break ends and students return from their Work-Studies to show their progress with their Quirks and skills. At Ground Alpha, under the supervision of All Might, the students battle Villain Bots to show off the new skills and Super Moves they have developed. Mina, Yuga, and Toru are the first to show their improvement under the tutelage of Yoroi Musha.

Yuga Aoyama shows off a brand new Super Move: Navel Saber, using it to destroy several of U.A.'s Villain Bots, much to the delight of his classmates. Toru Hagakure jumps into the battle, congratulating Yuga, and revealing her new ability to grab and warp light, grabbing one of Yuga's laser beams, and bending it into a group of Bots, destroying them.

Although Yuga ends up with a sore stomach for having abused his Quirk during the exhibitions, the three students proudly announce their success, much to the delight of All Might and the rest of the class. Later at night, he helps his classmates to organize a Work Study/Brainstorm/Hot pot party to energize everyone for the new term.

The months go by until it's late March. The Hero Public Safety Commission had uncovered the plans of Tomura Shigaraki and his organization, the Paranormal Liberation Front. They organize a large force of heroes to take the villain organization down. While a team of heroes raid the Jaku General Hospital, where the Nomu are created, another team does the same at Gunga Mountain Villa, the Front's main headquarters.

Yuga joins the Villa Backup Team along with some of his classmates and Class 1-B students. Their mission is to provide support to the heroes who raid the Gunga Mountain Villa and prevent villains from escaping.

After Tomura Shigaraki woke up and commanded Gigantomachia to reunite with him, bringing the PLF Lieutenants with him. Heroes try and fail to stop the walking calamity. Earphone Jack detects the giant and warns her teammates. Likewise, Midnight contacts the students and transmitting them what they have to do to stop the giant. Momo takes the leadership to defeat Gigantomachia and uses her Quirk to create a large number of vials of undiluted sedative, giving one to each student so that at least one can make the giant swallow a vial.

Following Momo's lead, the students set the trap for Gigantomachia by softening the ground. As they planned, Gigantomachia falls into their trap and the students begin their assault. Yuga is part of the group tasked with attacking the PLF Lieutenants so they don't interfere while the others try to make Gigantomachia swallow a vial. With the help of Mezo, Yuga fires multiple navel lasers at the villains. However, the Lieutenants and Gigantomachia manage to repel the assault.

Despite this, the students continue the assault, which now has the support of several heroes who had come to help them. With great difficulty, Eijiro Kirishima gets Gigantomachia to swallow a vial with sedative. More heroes led by Majestic arrive to take charge of Gigantomachia now that he has ingested the sedative, because the more he moves the faster it will spread. Gigantomachia, however, takes on an armored appearance and easily defeats the heroes, and continues on his way to Tomura. Before being killed, Majestic uses his Quirk to bring the U.A. students to safety, who can only watch helplessly as the giant devastates everything in his path. In the aftermath of the Paranormal Liberation War, Yuga and the rest of Class 1-A receive the letter from Izuku explaining his history of being Quirkless and "One For All", and how he left U.A.

Tartarus Escapees Arc
In confusion, the rest of Class 1-A deduce that Izuku is now working with Endeavor and his team. Kyoka mentions that All Might hasn’t returned either and Mashirao adds that classes have been suspended and they haven't become second years yet, with the Hero course students on standby and helping as security, so acquiring any information in this environment will be tough. Like him, everyone suspect that All Might and Izuku are working together with the top three heroes and was getting very impatient with their response, so Class 1-A pushed forward using Endeavor's U.A. Alumni status to confront him despite knowing how much he does not like to be tricked.

Once Principal Nezu gives permission to allow the class to bring Izuku back home to safety. After days of trailing in Izuku's whereabouts, Yuga and Class 1-A arrived on the scene to defeat Dictator and then apprehend Izuku. When he refused to give up the fight, Class 1-A pursues him.

Yuga helps Eijiro and Toru secure Dictator until Endeavor arrives to arrest him. He and the rest of the class then pursue and convince Izuku to return to U.A. After listening to Katsuki's apology, he and the rest Class 1-A return to a heavily fortified U.A High and deal with the protesting civilians.

Star and Stripe Arc
After Izuku returns to U.A., Yuga and his parents are once again contacted by All For One. The family meets in U.A.'s forested area, where there is no security. Yoga's parents beg him to continue being the best spy he can be, for fear that All For One will kill them otherwise. The family meeting is overheard by Toru and Izuku. Yuga confesses that he is the traitor, a villain.

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