In the aftermath of the war, UA Hero Academy added a special fourth year for students affected by the conflict. Class 4-A, now 22 strong, is a mix of alphas, omegas, hybrids, and quirk users, navigating their final year of training, growth, and bonding. Y/N, a familiar face in the class, helps keep the chaotic group together as they balance slice-of-life dorm antics, training challenges, lingering pressures of hero society, and the sparks of romance and drama—making this extended last year unforgettable for everyone.