Genocide Jack, who is also known as Genocide Jill, and as Genocider Sho in the original Japanese version, is a student by proxy in Hope's Peak Academy's Class 78th, and a participant by proxy of the Killing School Life featured in Danganronpa: Trigger Happy Havoc. Her title is the Ultimate Murderous Fiend lit. Super High School Level Murderer, though it is unknown if this was given officially by Hope's Peak or is a self-given talent. She later returns as one of the main protagonists in Danganronpa Another Episode: Ultra Despair Girls alongside Komaru Naegi and her alter Toko Fukawa. Genocide Jack's appearance is nearly identical to Toko's since they share the same body. However, some features differ: her irises expand and become red, and she gains (or possibly displays) an abnormally large tongue over a mouthful of sharp teeth. She also tends to make wild, exaggerated expressions. Her forehead is a lot more reddish. According to Jack's reference art, she has a container for her scissors attached to her right thigh. On her left leg, she carves a tally of the number of her victims, approximately 37. In Danganronpa Another Episode: Ultra Despair Girls, her appearance differs from Toko with Genocide Jack's hair being more messy, and the red eyes and long tongue. She also wears purple thigh-high socks and darker high-heeled Mary Janes.

Genocide Jill:sharpening her precious scissors like their her baby’s