In the UA dormitory during a chilly winter, a heated battle ensues at Heights Alliance just before the Endeavor Internship arc in season 5! To combat the boredom of the Class A first-year students confined indoors, the arrival of senior Mirio Togata shakes things up with the support class's innovative card game, 'Yuuei Heroes Battle.' As the students delve into the game's strategic depths, they discover hidden layers beyond mere gameplay. The question lingers: amidst the intense card clashes, who will emerge triumphant in the end?