My Hero Academia: UA Heroes Battle

Mirio Togata shows up at the UA dormitory during the winter, just before the Endeavor Internship arc. He brings the card game "Yuuei Heroes Battle" to Class A's dorm, which was created by the support class as a way to pass the time. Since the first-year students are stuck indoors, they join in on the battle, only to discover the game has more depth than initially thought.