Rikido Sato/Synopsis

Battle Trial Arc
He is paired up with Koji by the lottery. It is unknown how well they both did in the trial itself.

U.S.J. Arc
Rikido shouts to Tenya about running for help. Upon seeing All Might, he smiles happily. After the battle when the League of Villains leaves Unforeseen Simulation Joint, he is seen with the rest of his class.

U.A. Sports Festival Arc
Rikido places 15th in the Obstacle Race, allowing him to participate in the next event, the Human Cavalry Battle. He then teams up with Toru, Kyoka, and Koji. Rikido fails to advance to the tournament event of the Sports Festival due to his team not accumulating enough points.

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

Vs. Hero Killer Arc
Two days after the Sports Festival, Rikido is in class. During the Hero Informatics period, Class 1-A has to decide on Hero Names. Rikido writes down and shows his classmates his Hero name, Sweet Taste Hero: Sugar Man. Rikido is a little annoyed that Mashirao has a Hero Name similar to his (Tail Man).

After Class 1-A is finished formulating their Hero names, Rikido is given a list of 40 work places in order to choose a workplace that he wants to train at. On the day of the work place training, Rikido is at the train station with his class so that he can travel to the work place of his choice by train.

Final Exams Arc
One week before the end of term test, Rikido talks to Koji about the end of term test, saying that it will be more difficult than the mid-term tests. On the day of the exercise test, Mr. Principal reveals that Class 1-A will be fighting U.A.'s teachers in their exercise test.

Rikido is paired with Eijiro and they must face Cementoss in their test exercise. Rikido, Eijiro, and Cementoss arrive in an uninhabited city where their test exercise will take place. Cementoss explains the 30-minute test; Rikido and Eijiro must either handcuff him or one of them must escape the battlefield within 30 minutes in order to win and pass the test. The test begins.

Eijiro and Rikido keep smashing their way through Cementoss' cement walls, but the more walls they destroy, the more walls Cementoss creates to keep them at bay. Cementoss tells Eijiro and Rikido that their weaknesses are drawn out battles and advises the duo to push their strength to the limit. Eijiro and Rikido are unable to get past Cementoss' walls by the time the End of Term Test finishes, and as a result, they fail.

Back in class at U.A., Rikido is crestfallen that he is unable to go to the forest lodge due to failing the practical test. Soon, Shota enters the classroom and informs Class 1-A that they are all going to the forest lodge which will be a boot camp, which makes Rikido happy. However, Rikido will be receiving harsher training at the boot camp for failing the practical test. Rikido goes with his class to Kiyashi Ward Shopping Mall to buy necessities for the forest lodge.

My Hero Academia: Two Heroes
At some point Rikido arrives to I-Island along with Hanta.

On the night of the I-Island preview, Hanta and Rikido go eat at Meke’s Dinner when the I-Island system is hijacked. A curfew announcement is made, so they walk back to their hotel room. Once Melissa reboots the system to normal mode, Rikido is glad everything is alright.

Rikido 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, Mezo, along the rest of Class 1-A boys, is invited by Deku to participate in an endurance training session, an idea of Minoru and Denki (an excuse to be able to see the girls in bikini). When Katsuki arrives and challenges Izuku, the boys opt to compete against each other by sprinting down the pool. Shota arrives to kicking all the students out of the pool area due to the expiration of their time limit.

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. 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, while monsters made from dirt clods created by Pixie-Bob attack them students. Class 1-A works together to fight their way through Beast's Forest. They encounter several different dirt monsters. Rikido and Eijiro and use their enhanced strength to destroy one of the monsters after Hanta slams it into the ground with his tape. Class 1-A doesn't make it through the forest for several more hours. Well over their time limit, Class 1-A arrives at the base camp exhausted and battered. Then, they 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. Rikido training consists of working out while eating the sweets he needs to activate his quirk to power up.

After dinner, Hanta and the other students who failed their practical exams takes extra lessons with Shota until two in the morning. Training starts back up at seven the next day. Rikido and the others are all sleepy and tired because the extra lessons, but Shota Aizawa force them to train while instructing them. Shota gives advice on increasing the power of their Quirks: Rikido must increase the capacities of his Quirk, telling him to continuously use his Quirk.

At the third day of training, Rikido is happy because that night all the students will participate in a courage test. Shota, however, forces the remedials to sit out for more teaching, much to their displeasure. The Vanguard Action Squad of the League of Villains invade that night. Mandalay sends out a telepathic message warning the students of their arrival.

Shortly after Shota leaves, Mandalay sends out two more messages giving permission for students to fight back and informing everyone that Katsuki is one of the villain's targets. While Vlad King is watching over the students, they are atacked by Dabi, who blasts the door open with a flame attack. Vlad King acts quickly and moves the students out of the way before restraining the villain with his Quirk, but it turns out to be nothing more than a copy sent there to distract them.

The villains successfully kidnap Katsuki and the students return home from camp.

Hideout Raid Arc
Two days later, Rikido visits Izuku in the hospital along with many of his peers, where he hears Eijiro and Shoto’s plan to rescue Katsuki, asking Izuku to join them. Although he does not oppose the intentions of his classmates, Rikido does nothing to stop them.

Provisional Hero License Exam Arc
Following the intense villain attacks toward U.A. students, the rescue of Katsuki and the retirement of All Might, Nezu orders the construction of a series of buildings to transform U.A. into a boarding school in order to protect the students. Shota meets with his students outside of their new residence. He states they must start preparing to get provisional hero licenses like they had planned to during the training camp.

Before allowing Class 1-A students to go in, Shota scold them all for disobeying the rules, allowing five students to rescue Katsuki and did nothing to stop them. He further more says he would have expelled everyone but Katsuki, Toru and Kyoka (due to them being captured and hospitalized, respectively) from the school, if it weren't for All Might's sudden retirement and asked them to stick to the rules from now on.

Afterwards, the class explore their new dorm. Later that night, after everyone moved in and decorated their respective bedrooms, the girls suggest a room showcasing competition. The class looks at each others room, until they check out Rikido's. His room is fairly normal and bland, but it noticeable has an oven and baking utensils in. Rikido remembers he was baking a cake for everyone since he finished remodeling his room early, and shared the cake with everyone his classmates, much to the delight of the girls. Denki and Minoru moan about this surprising side to Rikido.

The girls praise Rikido for his baking skills, and blushed for their compliments, Rikido explains that due his Quirk is powered by sweets, To train and complement his Sugar Rush, he has become excellent at baking. Back in the common space on the first floor, the votes are tallied and the Room King Award goes to Rikido, much to Rikido's surprise. Rikido received his votes from the girls because his cake was delicious, which makes Denki and Minoru accuse Rikido of bribing. Rikido denies the accusations, but can not hide his happiness for having won.

The following day, Rikido, along with the rest of 1-A, are told by Shota that their next goal is to obtain their "Provisional Hero Licenses" Shota announces that Class 1-A 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.

Rikido 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, Rikido gets scattered, and have to defend himself from the attacks of the rest of the participants while looks for his classmates.

As the exam reached its end, while trying not to be eliminated, Rikido sees Yuga's beam. Thanks to him firing his laser into the sky, Rikido and the remaining Class 1-A students that still has not passed the exam get together again, and they collaborate to eliminate the opponents. This ends with the entire Class A passing the first part of the exam.

Rikido waits until the Second Exam of the Provisional Hero License Exam begins. It consists of a rescue mission, the scenario is a terrorist attack and the participants are expected to rescue H.U.C. employees who act as victims. Rikido sticks with the rest of his class, and under Momo's direction, he helps his classmates to rescue the "victims" from the rubbles. Because their rescue maneuvers were good, Rikido passes the second exam, so he receives his provisional license.

Shie Hassaikai Arc
The next day, after the opening ceremony, at classes, Shota talks about Hero Work-Studies and days later, introduces to them the The Big 3, the best U.A. students: Mirio Togata, Tamaki Amajiki and Nejire Hado. They will be the one who will introduce them to the Hero Work-Studies.

Like the entire Class 1-A, Rikido is confused by the eccentric personalities of the Big 3, and is also surprised when Mirio challenges them all to a fight. At Gym Gamma, the entire Class 1-A attacks him, but Mirio manages to defeat the entire Class 1-A alone without breaking a sweat thanks to his Quirk Permeation.

After the fight, while Class 1-A recovers from their defeat, Mirio advises them to participate in the course, since it will help them improve their abilities and career as heroes, just as it happened to him.

Remedial Course Arc
Weeks later, Rikido and his classmates are aware of the police raid on Shie Hassaikai in which Izuku, Eijiro, Ochaco and Tsuyu participated, being concerned about them because of how the police operation ended. So, when they return to their dormitories at the school, Rikido, along Class 1-A, is checking to make sure they are doing okay after their mission.

To help them feel better, Rikido prepares a cake. He even shoving the cake into Deku's mouth in an effort to make him feel better after his difficult Hero Work-Studies.

U.A. School Festival Arc
Shota Aizawa announces that U.A. High School will be having a School Festival, which is sponsored by the other U.A. departments. He tells Class 1-A to pick out a program to perform at the festival. Tenya Ida asks for ideas to class 1-A, but each one has his own and they don't reach an agreement.

At Heights Alliance, Class 1-A along with Rikido finally decide to accept Mina's idea of carrying out a dance performance for the U.A. School Festival. Class A-1 students are divided into three groups: Band team, Dance team and Staging team. Rikido is part of the dance team. During the following weeks, the dance team constantly practices the choreography devised by Mina.

On the appointed day, the Class 1-A performance ends up being a huge success. Rikido helps Izuku with baking the candy apple for Eri, since they did not sell that candy in any of the stands.

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.

Joint Training Arc
Shota Aizawa and Vlad King hold a Joint Training Battle between their classes during the early days of winter. Each class chooses lots to split into five teams of four. As the teams are set, Rikido is placed with Katsuki Bakugo, Kyoka Jiro, and Hanta Sero, and they will face Class B's team of Yosetsu Awase, Setsuna Tokage, Kojiro Bondo, and Togaru Kamakiri at Round 4.

Before the fourth round of the Joint Training Battle, Katsuki tells his teammates that he wants to take the lead and charge ahead with the others serving as back up. Katsuki gives each of them one of his grenades and tells them that he'll save them if they get in trouble and asks them to do the same for him. When the round start Katsuki rudely tells Hanta and Rikido to follow his lead and orders Kyoka listens for the other team while trailing them. Rikido groans over Katsuki's behavior, noting that he has not changed since the Sports Festival.

Class 1-A charges through Ground Gamma when they are ambushed by Class 1-B team. Setsuna's Quirk lets her spread out her separated limbs throughout the field and uses her tiny body parts to attack them. They barrage Katsuki with rapid-fire small hits and Hanta uses Barricade Tape to protect his team, so that the lizard parts cannot attack and proceeds to call Katsuki over.

Setsuna says that they are done for. Kojiro appears and uses Glue Squall to spray his adhesive all over Hanta's tape barricade. Hanta tries to lead the three of them away but Togaru uses his Quirk to slash a large pipe that crashes down toward the other team. Rikido tries to sacrifice himself to hold it up but Katsuki manages to fire a large enough explosion to save his team.

Class 1-B decides to retreat after seeing that his plan has failed, but Katsuki is not willing to allow it and chase them. Yosetsu catches Katsuki off-guard with his newly developed Super Move, Construction-Done-Kwik: Weldcraft, binding him to the surrounding structures. Although Katsuki struggles to break out of Yosetsu's trap, Rikido arrives and free Katsuki from his restraints with his Sugar Rush Super Move.

Once Katsuki is released, one by one the different members of the class 1-B team are defeated and captured by the Class 1-A lead by Katsuki, with little to do to counterattack or defend themselves. The fourth Round of the Joint Training Battle ends with Class 1-Ascoring a perfect victory with 4-0. Shota Aizawa commends Team 1-A for being able to cooperate well enough to reduce battlefield damage and efficiently capture the opposing opponents without any hassle.

After the match, Rikido watches the last round. When a mysterious and uncontrollable power arises from Izuku's arm he wonders if it's some kind of new technique. Fortunately Izuku controls this new power and ends up winning his round, granting Class 1-A victory in 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. Rikido works as a lifesaver on the beach with several of his classmates. Mezo spots a kid in trouble. Tsuyu dives into the water to help grab him while Rikido rows the boat to save the boy. Rowing up there exhausts Rikido a lot, so when he picks up the boy the latter starts crying, much to Sato's confusion. Tsuyu tells him the boy is scared of his exhausted face.

The next day, while the majority of class 1-A waits in the office waiting for a request, a neighbor and Fumikage arrive to report that the island is being attacked by a group of villains. Have quickly organize the class to face them. Rikido, along with Tenya, Shoto, Fumikage, and Hanta head to the beach to help Mashirao and Shoji in their fight against the villain Chimera. Once there, despite outnumbering him, Chimera is superior to the students. Collaborating with Fumikage, Rikido attacks him from the sky, but the villain uses his immense strength to strike the young hero. Even though Rikido blocked the blow, the powerful punch throws him against the rocks, knocking him unconscious. The remaining students continue fighting until Chimera must withdraw when he sees a sign from one of his classmates in the sky.

At night, the students retreat to a factory to heal their wounds and provide first aid to the inhabitants of the island. 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. Rikido, Koji and Toru will lead the island's citizens and livestock into a cave to hide. Meanwhile, the rest of the Class 1-A will fight the villains.

Because of the powers unleashed by Nine during the confrontation, he causes a cave-in, trapping Koji, Rikido and Toru along with the civilians in the cave. Sato uses his enormous strength to prevent the rocks from falling on the civilians, while ordering his companions to take them to the bottom. Although the entrance is sealed, Rikido manages that no one else is injured. After this, everyone remains locked up until a few hours later several pro heroes arrive on the island and get them out of there, providing first aid. During the time they remained in the cave, Rikido's classmates managed to defeat Nine and his allies. The students recover from their injuries and help with reconstruction tasks before returning to the U.A. High School.

Endeavor Agency Arc
Class 1-A participates in a Hero Interview Training taught by Mt. Lady. While Shoto shows his Super Move, Flashfreeze Heatwave, which Rikido and Toru mistakenly recognise as Endeavor's Flashfire Fist.

Days later, the Hero Work Recommendation Project takes place, and Class 1-A stays on Nabu Island before returning to U.A. With the Work-Studies about to start during the Winter Break, Class 1-A celebrates Christmas at Heights Alliance. Rikido helps with the preparation of the food for the Christmas party such as a turkey, demonstrating he has cooking skills beyond just baking. He also feeds Katsuki. Then, the whole class participates in a random gift exchange in the dorms.

With the start of the second Hero-Work Study, Rikido and Mashirao team up with Jurota and Nirengeki to be trained by the hero Shishido.

My Hero Academia: World Heroes' Mission
As a member of the Shishido Agency, Rikido participates in the World Heroes Association's mission to take down Humarise, an anti-Quirk cult that caused the deaths of thousands of people with a Trigger Bomb. The entire Shishido Agency travels to the U.S.A. to join the America Task Force to take part in the assault on the branch that Humarise has in the country along with many other heroes.

The raid ends with the heroes defeating and arresting hundreds of Humarise members, however no Trigger Bombs were found in the building. Because of that, the director of the WHA orders all the teams to remain alert in their respective countries. Several days later, Flect Turn, the leader of Humarise, publicly broadcasts to the entire world that in two hours they will detonate all the Trigger Bombs they have planted in the twenty-five cities where its branches used to be, including New York.

As a consequence of this threat, panic breaks out in the streets of the city, causing numerous altercations and incidents. The heroes quickly deploy to evacuate civilians, extricate the injured, and search for the Trigger Bombs. Rikido participates in the evacuations, and when the Trigger Bombs are found, he also participates in the fights against the Humarise agents who are protecting the deadly devices.

The fighting continues until the detonation countdown ends, but to the relief of the heroes, the bombs do not explode. This is thanks to Izuku's group breaking into Humarise's main headquarters and successfully defusing the bombs worldwide. With the main threat solved, the heroes defeat and imprison the last members of Humarise, dismantling the organization. Once the worldwide crisis is over, Shishido Agency leaves the country and Rikido returns to U.A. High School, meeting up with his classmates and rejoice that everyone is okay.

Paranormal Liberation War Arc
Winter break ends and the 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.

Rikido and Mashirao, who worked with the No. 13 Pro Hero, Shishido, show off their improved attacking speed and predictive abilities. 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.

Rikido is a member of 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 go to him, Heroes try and fail to stop the walking calamity. Kyoka 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. Juzo uses his Quirk to soften up the ground and Momo plant explosives she created in the softened area. They also position several chords covered in Minoru's orbs.

As they planned, Gigantomachia step into the students' trap and he falls to the ground. The strings covered in Minoru's orbs stick to his chin, and while the giant tries to get out, Rikido, along with Class 2-B members Itsuka Kendo and Jurota Shishida, pull with all their might on the ropes, intending to open his mouth wide enough to allow their teammates to throw the sedative inside him. Despite their efforts, Gigantomachia and the members of the League manage to repel the students.

Fortunately, Eijiro manages to throw a vial into Gigantomachia's mouth, and when the giant is about to crush him, Rikido and other students start shooting him with cannons created by Momo, allowing Eijiro to be rescued by Setsuna Tokage. Several 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 takes on an armored appearance and easily defeats 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. After the battle he, along his classmates, finds out that Midnight was killed and the students start grieving over their teacher's body.

Two days later, Minoru, Toru, Hanta, and Rikido see Katsuki wake up from his injuries, and are relieved that he is okay, taking his angry attitude as a sign of wellness. When Katsuki asks how everyone else is doing, they unenthusiastically explain that while most others are conscious, Izuku has shown no sign of waking up, prompting Katsuki to make his way toward Izuku's room. Rikido and Minoru try to stop him, though Katsuki brushes it off and says that their pulling him is killing him faster. Eventually, Katsuki is stopped by Tsuyu, who helps carry him away using her tongue. They notice Hawks and Best Jeanist going to Izuku's room, wanting to ask him about One For All. After the Paranormal Liberation War ended, Rikido returns to Heights Alliance with the rest of Class 1-A and receives a letter from Izuku explaining about his origins of being Quirkless and One For All, so he has to leave to guarantee their safety from All For One.

Tartarus Escapees Arc
A few days after Izuku left U.A., Rikido is seen at a meeting with Class 1-A. He and his classmates deduce that Izuku is now working with Endeavor and his team, as well as with All Might. A few days later, impatient with their response, Class 1-A pushed forward using Endeavor's U.A. Alumni status to confront him and get him to reveal the truth.

Once Principal Nezu gives Class 1-A permission to bring back Izuku to U.A, Rikido joins with his class to search for Izuku while at the same time, apprehending any prison escapees along the way. After a month of trailing in Izuku's whereabouts, Class 1-A finally arrived on the scene to defeat the villain Dictator. When Izuku refuses to yield, he demands everyone to get out of his way, which means they'll have to fight.

As the fight goes on, Izuku tells them that his presence endangers everyone and fears of All For One killing them to break him, which is why he has to stay away from them. When he starts to break out of Mashirao's tail grip, Fumikage appears and uses Dark Shadow to knock him into a building. Rikido rescues Kyoka and Mashirao, reacting to Izuku's great strength, as he yells to him that while he may have a special power, they all share the same feelings, and to think about what they said, or else he won't let him use food coloring for Eri's candy apples, which Izuku attempts to brush off.

Once Izuku was caught up by Tenya, Rikido regroups with the rest of Class 1-A and listens to Katsuki apologizing to Izuku before he collapses from shock and exhaustion. He escorts Izuku safely with the rest of Class 1-A to return to a heavily fortified U.A. High where they are confronted by angry protesting civilians. They are aware that Tomura is after Izuku and fear them being in danger, leading Ochaco to give a pleading speech toward the crowd on why he needs their help and deserves to stay and rest, with the civilians eventually agreeing.

Izuku is escorted inside, where Rikido and the other boys of the class quickly strip him of his dirty clothes, washing him vigorously and then dump him in the bathtub before joining in. After finishing the bath, Izuku finally passes out from exhaustion, and Rikido joins the rest of the class in declaring they'll do whatever they can to bring back the world and make it better.

U.A. Traitor Arc
Two days later, Class 1-A learn that during this time, Tomura had fought American No. 1 Hero, Star and Stripe, and while she was killed during the battle with Tomura successfully stealing her Quirk, New Order, thanks to her actions, the Quirk acted like a virus within his body, destroying several of his Quirks and delaying his procedure by about a week. All Might informs all this to the class, telling them that this is now their perfect time to prepare for the inevitable all-out war. The class reveals over the past month they had been training with the Wild, Wild Pussycats in order to keep up with Izuku in the incoming conflict, and are now about to head out to continue their training.

The class proceed to train amongst themselves in the courtyards outside. Shortly after this, Rikido alongside the rest of the class discover the news that Izuku has captured the Aoyamas and revealing Yuga to be the traitor who isolated the class at the U.S.J. and revealed the location of their training camp. Once the Aoyamas are restrained, he and the other class refuse to back down from the news despite Nezu's request, all in stunned and tears of Yuga's betrayal. He listens to Yuga's desperation that drove him to despair and then Izuku pleading to let Yuga help them, leading the class to realize Yuga may be the only one able to deceive All For One.

Shota then appears on a tablet screen, taking full responsibility and reveals that he has an idea. He listened to Shota's plan after the Aoyama Family's ears have been covered. Naomasa then has the Aoyama Family escorted back to their HQ, telling everyone not to say a word to anyone else about the plan while he and the rest of the class look on sullenly.

Back at Heights Alliance, Rikido takes a breather, before getting ready to gear back up, as he and everyone, with fire and rage in their eyes over the betrayal, prepares to bring All For One down once and for all. He joins up with their "Search Squad" to head out to hunt down the villains.

Later that night, he and his classmates return to Heights Alliance for a break, having come up with nothing in their search. All Might, Naomasa, and Nezu soon arrive to inform them all about their secret finalized plans for the upcoming Second War. They call in Hitoshi Shinso, revealing their plan to get him to brainwash the Aoyamas so that they can communicate with All For One without him detecting any ill intent. The class cheers on Hitoshi for his growth, including their teacher after learning he trained him.

The next day, Nezu announces to the civilians that Tomura will make his big move in 4 days, with Class 1-A moving outside of the U.A. barrier to began prioritizing their safety. He says his goodbyes before moving out of Heights Alliance and into its upgraded makeshift fortress called "Troy".

Final War Arc
On the day of the operation, Rikido remains with Class 1-A until Izuku made contact with Yuga, successfully luring All For One and the Villains out, before the Heroes are summoned to the battlefield thanks to the Warp Gate Quirk courtesy of Neito Monoma. All Might promptly activates the "Troy" defense system, encasing the villains into cages long enough for the Heroes to push them all into separate Warp Gates, splitting them up all over Japan.

Rikido, alongside Mashirao and Hanta, are sent to the Takoba National Stadium to battle a group of villains. They eventually receive word of Shoto defeating Dabi, with Rikido and Mashirao talking about how they need to congratulate Shoto properly once the battle is over.