Class 1-A are bored out of their minds! Stuck in their dorms during the winter season, they can't go out or do anything fun. That is until third year Mirio Togata pays the students a visit with a new card game the support course developed that uses U.A. students as playable characters. Now to pass the time, they'll play this game that's just as tough as U.A. Who will win the card battle?!