As UA Academy's Class 1-A garners public scrutiny from enduring numerous villain assaults, their counterparts in Class 1-B harbor resentment. Eager to showcase their prowess, Class 1-B seizes the chance for mock battles against each other. Divided into squads, the objective is to capture opponents to claim victory. The twist arrives with General Course Student Hitoshi Shinsou's participation, aiming to switch to the esteemed Hero Course. Despite training under Class 1-A's mentor, Shouta Aizawa, Shinsou faces a steep learning curve. Driven by determination, he plunges into the intense rivalry between the two classes, each vying for supremacy.