Izuku Midoriya vs. Class A

Izuku Midoriya vs. Class 1-A is a battle fought between Deku and Class 1-A.

Prologue
With Tomura and All For One's escape, and the Search Quirk allowing them to easily locate him, Izuku leaves U.A. in his attempt to keep his friends and everyone else out of danger. After agreeing to partner alongside Endeavor, Hawks, and Best Jeanist to track down the remnants of the League of Villains, Izuku has All Might secretly send personalized letters to his 19 classmates at Heights Alliance, revealing the truth about One For All and why he decided to leave. The members of Class 1-A don't take the news well, and quickly resolve to discover where Izuku has gone.

They are able to deduce that both Izuku and All Might are most likely working alongside the Top 3 Pro Heroes, despite it not being public knowledge. Katsuki, Shoto, and Fumikage each try to get in contact with their respective mentors to confirm, but their messages being ignored only fuels their fire. Some of the classmates question what they could do, and if they should worry if Izuku is with the adults, however Katsuki, knowing him and All Might better than anyone, believes leaving the two of them alone at this time would be the worst possible situation. Ochaco then figures out a plan to help them "force the issue".

Taking advantage of Endeavor being a U.A. alumni, they propose their predicament to Principal Nezu, who agrees and arranges a meeting with Endeavor. When the Hero arrives, he's cornered by 1-A, to his chagrin at being tricked. He refuses to answer when asked about Izuku and All Might, it confirms everyone's suspicions. Katsuki proceeds to approach him, telling him that just like All Might did as the Symbol of Peace, Izuku never takes himself into account and will work himself to death without real help. Already aware of Izuku abandoning All Might and going rogue, not listening to anyone, Endeavor is unsure of what to do.

When Hanta notices Endeavor's phone, recognizing it as also having a GPS, he tosses it, which several of the students catch. The classmates proceed to state their desire to help Izuku, how learning about One For All and his leaving was a shock, but still declaring they want to follow wherever he goes and help bear the responsibility he must carry. Endeavor is wary about letting them go out due to the current state of the world, but 1-A is supported by Nezu, saying that he is welcome back at any time and that every member of the school, past and present, are ones U.A. will protect. He encourages the class to help bring him back. Class 1-A join the Top 3 Pro Heroes in order to find Deku.

Meanwhile, Deku has been searching for days without success for any clue as to the whereabouts of Tomura Shigaraki or All For One, and during the search he has been protecting civilians, taking on villains, and basically solving whatever problems he encountered, with hardly any sleep or rest. When he reaches Kamino, in the memorial plaza where the confrontation between All Might and All For One took place, he encounters a villain called Dictator, sent by All For One to capture him. Using his Quirk, Dictator controls dozens of innocent civilians to attack Deku. Before they can harm him, Dynamight appears and quickly dispatches of the villain when it is giving Deku trouble, and telling the others that he has found Deku.

Soon the other students from Class A arrive in the plaza, with Shoto and Creati capturing the unconscious Dictator. Freed from their control, the civilians escaped the scene, leaving only the students. Deku questions why everyone is there, with Uravity saying they're all worried about him. Deku insists he's okay and that everyone should leave, but Dynamight mockingly laughs at it and asks if he's really smiling now. Deku retorts that in order for him and everyone to be able to smile, he needs to keep moving forward, demanding that everyone get out of his way. Dynamight, Ingenium, Uravity, and the rest of 1-A state how they knew they wouldn't be able to change his mind normally, as everyone prepares to face off.

Battle
Not wanting to confront his classmates, Deku opts to run away, ignoring the taunts from Dynamight about how far he’s fallen. He thanks everyone for coming, before fleeing from his friends using the Sixth's Smokescreen Quirk. However, Class A are knowledgeable about most of the Quirks that Deku had inherited and therefore know what steps to take to neutralize some of Deku's abilities. Dynamight shouts to the rest of the class not to let him get away, utilizing his new Super Move Land Mine Blast to dissipate the surrounding smoke, and teases Deku for underestimating them.

Anima uses her Voice Quirk to summon a large flock of birds to envelop Deku and make it difficult for him to escape. Anima loudly declares to Deku Deku that Director Nezu allows him to return to the U.A., so there is no need for him to run away. Deku apologizes and decides to flee using Blackwhip, launching two tendril from his back to a nearby building, but Cellophane manages to subdue the fifth's Quirk and wrap one of Deku's hands with his own Tape. This makes Deku remember that it was thanks to his advices that he was able to use the Blackwhip more effectively.

Deku undoes the tendrils and cuts the tape that was holding his hand, but before he can move, he sees the Amplifier Jack s of his classmate Earphone Jack, who uses them to erect a barrier of sound waves called Heartbeat Wall, forcing him to jump away. Jiro then reminds Deku the time he helped her to organize her notes ahead of the School Festival.

Tailman then takes the offensive, and catches Deku with his tail using Tornado Tail Dance. He tells Deku that he can't overlook his situation, especially when he got angry at Hitoshi Shinso for insulting him during their match at the Sports Festival. Deku replies that his presence endangers everyone and fears of All for One hurting them, that's why he has to stay away from them. He starts to break out of Tailman’s grip when Tsukyuomi appears and uses Dark Shadow to knock him into a building. Sugarman catches Earphone Jack and Tailman, talking to Deku about how they take care of Eri.

Still restrained by Dark Shadow, Deku claims that Eri will be fine without him. Suddenly, he is restricted by a machine created by Creati, who comments that they've been authorized to use their Quirks to help the heroes for this mission to ensure Deku’s safety. Noticing that the machine is designed to put him to sleep, Deku destroys it with his head and tries to free himself, yelling Class A to stop wasting their time on him. Chargebolt shoulder hugs Deku, stating that he know that One For All is important to him, and despite have little in common, he still considers him his friend.

Tentacole manages to trap Deku along with Chargebolt using his Dupli-Arms with the help of a insulation tape made by Creati. He then reminds of his words during the Training Camp how everyone together can even give All Might a scare. Tsukyuomi also helps to keep Deku pin down, using Ragnarok: Womb to trap him. He reminds Deku that the idea of using Dark Shadow's offensive power for defensive purposes came during their team up during the Cavalry Battle at the Sports Festival.

All of them combine their powers to contain Deku, as they try to get him to either listen to reason. Begging them to stop, Deku manages to break free from their restraints, blasting away from the building as his mask falls off. On the verge of crying, Deku understands his friends are truly worried for him and that everything they are doing is for his own good, which is why his Danger Sense Quirk hasn’t activated even once during the entire fight, but he continues to shout insisting he's fine.

He suddenly smacks right into a Heaven-Piercing Ice Wall, as Shoto looks down on him, seeing his broken face, encouraging him to share the burden with them. On a building close by, Froppy appears tells him she's not going to weep and mope around anymore. Deku matters to her, and because of that, if he wants to remain strong like a comic book superhero, Class A won't let him go at it alone.