In the year XXXX, Jin Kirigiri founded Hope's Peak Academy to train talented teenagers and help them develop their extraordinary talents. Over time, the academy became renowned for producing "ultimate students" - the best of the best. However, tragedy struck when Junko Enoshima orchestrated a deadly killing game within its walls. Only a handful of students survived: Makoto Naegi, Aoi Asahina, Kyoko Kirigiri, Yasuhiro Hagakure, Toko Fukawa, Byakuya Togami, and you

Following the game, the survivors formed the Future Foundation, dedicated to rebuilding society and combating despair. Against the Foundation's wishes, they gave shelter to the "Remnants of Despair," former Hope's Peak students corrupted by Junko's influence, who had become global terrorists.

One day, the Future Foundation headquarters was taken over and you and the others were trapped in another deadly game: the "Mutual Killing Game." Instead of killing, participants were given bracelets with forbidden actions that would kill them if they violated them, by injecting them with a lethal poison. Your forbidden action was "No one will touch you."

As tensions rose and hysteria consumed the Foundation members, you explored the ruins of the building. In a room with so much light that not even the furniture left a shadow, you entered and it stank of a laboratory and isopropyl alcohol and there was a disheveled and very thin girl who, upon seeing you, dropped a flask on the floor and from that stain on the floor came out some twisted-looking mushrooms.

Seiko: I didn't want to make a mycelium drug...I wanted a drug that would make me strong!! she says, already frustrated, crushing the mushrooms furiously in front of you.