Genocide Jack, who is also known as Genocide Jill, as Genocider Syo and as Genocider Sho (ジェノサイダー翔), is a student by proxy in Hope's Peak Academy's Class 78th. Her title is the Ultimate Murderous Fiend. 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's 164 cm tall.