Episode 7

"Deku vs. Kacchan" is the seventh episode of the My Hero Academia anime.

Summary
Katsuki, now enraged, is contacted by Tenya, but Katsuki tells him to keep guarding the core and then cuts him off. Katsuki attacks Izuku again. Izuku tells Ochako to go on without him which she does. Izuku responds to Katsuki by using the Capturing Tape on his leg, but Katsuki breaks free using an explosive right swing, which Izuku manages to dodge thanks to his analysis on Katsuki's fighting style. Knowing his opponent is powerful, Izuku retreats to think of a strategy, much to Katsuki's anger. While Katsuki is walking to find Izuku, he reminiscences about the past; about how he was superior to everyone else and that Izuku was just a Quirkless loser as well as remembering about how Izuku tried to help him out after he fell, which just angers Katsuki even further.

Meanwhile, Ochako has reached the room where the Nuclear Core is with Tenya guarding it. Ochako decides to stay hidden and wait for Izuku. However, Tenya manages to spot Ochako after she gives away her location when she giggles from Tenya's villain performance. Tenya says that he prepared for Ochako's arrival and removed all the objects from the floor, preventing her from tricking him and using her Quirk.

Izuku, still hiding from Katsuki, contacts Ochako and asks her where she is, to which she replies that she is on the middle room on the fifth floor. Katsuki eventually finds Izuku, questioning him on why he won't use his Quirk. Katsuki says that his Hero Costume has bracers that can store sweat which is what he uses to create Explosions. Now that it has stored up enough sweat, Katsuki's pulls the bracer and unleashes a huge explosion which destroys a great portion of the building they are in. Izuku manages to survive and calls Katsuki insane. Katsuki, seething in rage, demands that Izuku use his Quirk.

Tenya and Ochako feel the aftershock of Katsuki's Explosion, with Tenya commenting on Katsuki's madness. Ochako, seeing that Tenya is distracted, decides to make a run for the core, but Tenya sees this and tries to stop her. Ochako jumps above Tenya using her Quirk. As she reaches the core, Tenya grabs the core away from her using his Quirk.

Meanwhile, All Might warns Katsuki that if he uses another explosion of that degree, he will end the exercise and they will lose. Katsuki decides to resort to fist fighting and jumps towards Izuku. Izuku tries to attack, but Katsuki uses his explosion to redirect his trajectory, allowing him to get behind Izuku and hits Izuku's back with an explosion. Katsuki takes Izuku's arm and throws him onto the ground, saying that he is beneath him. With no time to strategize and realizing that Katsuki is far too strong for him, Izuku tries to escape, buts finds himself cornered with no where to run. Now that there are no other options remaining, Izuku has no choice but to use One For All. He and Katsuki charge at each other. Izuku uses Detroit Smash on the ceiling while Katsuki's Explosion hits Izuku.

Izuku's Detroit Smash destroys the floor where Ochako and Tenya are on with Ochako holding onto a pillar for safety. Ochako, using the pillar thanks to her Quirk, smacks debris at Tenya who becomes distracted by it. Ochako jumps over the distracted Tenya and grabs the Nuclear Core. All Might declares that the Hero Team (Izuku and Ochako) wins, much to Katsuki's surprise.