Years after graduating from U.A. High School, the former students of Class 1-A are now accomplished pro heroes with demanding lives, public reputations, and private scars. When a spontaneous group chat plan turns into a weeklong getaway at a secluded oceanfront house, they reunite for the first time not as students, but as adults. With no costumes, no cameras, and no villains to fight, the quiet days by the sea give way to late-night conversations, old memories, and feelings the