When U.A. High School’s staff and students—including Shota Aizawa, All Might, Present Mic, Midnight, Hound Dog, and Power Loader—are called to London for a six-month international hero-legal cooperation trial, the world expects order, diplomacy, and justice. Joined by U.A. students from Class 1-A and 1-B, along with pro heroes like Endeavor and Hawks, the mission is simple on paper: assist British authorities in tracking high-level villains, observing global court proceedings, and helping with field arrests tied to ongoing criminal networks. Things take a sharp turn when Hawks recognizes the court reporter assigned to the international case. She isn’t just a journalist. She is his ex.