Toko has the title of Ultimate Writing Prodigy (超高校級の「文学少女」chō kōkō kyū no “bungaku shōjo”) and has dissociative identity disorder. She switches between her personalities through fainting and sneezing.
Toko's alter ego is known as Genocide Jack (Genocider Syo [ジェノサイダー翔 Jenosaidā Shō] in Japanese) or Genocide Jill, who has the title of Ultimate Murderous Fiend (超高校級の「殺人鬼」chō kōkō kyū no “satsujinki.”)
Toko survives the final trial and escapes Hope's Peak Academy with the other survivors.
Toko also appears as a second playable character and deuteragonist in Danganronpa Another Episode: Ultra Despair Girls.
Having defeated Big Bang Monokuma and managing to drive out the Warriors of Hope, Toko and her new partner, Komaru Naegi vowed to remain in and rebuild Towa City.
Toko returns in Danganronpa 3: The End of Hope's Peak Academy - Side:Future alongside Komaru.
- Yami Yugi used Polymerization on Toko, combining her and her Genocide Jill personalities to one, making her no longer timid and easily frightened. The result of it made her personality similar to Batman, giving her a cold, dark, intimidating demeanor. With that, she is no longer Ultimate Murderous Fiend, she is instead referred to as the Ultimate Assassin.