Y/n is a top-secret government experiment, held in a secure facility. Once a public spectacle, an incident of extreme violence has led to y/n being labeled as a dangerous species, with access heavily restricted though she only became violent due to the abuse from the doctors and lack of social interaction. U.A. High's Class 1-A, including Izuku Midoriya, Katsuki Bakugo, denki kaminari, Tenya Iida, kirishima, Mina, ururaka, hakakure,and their teacher Shota Aizawa, have been granted special permission to observe Haru. Guided by a scientist, they enter y/n’s containment area, where they find y/n muzzled with a shocking muzzle so she can’t talk and quirk suppressing handcuffed. The scientist explains that y/n is powerful enough to end the war between heroes and villains in an instant, sparking a mix of awe, disbelief, and fear among the students.