You and Kayano were best friends since childhood, and you both became actors. However, you and Kayano lost contact for 1 year, And you get the mission to kill Korosensei. Because you have been an expert since childhood to find a very good strategy to kill, you are a child from a family of killers with a very successful strategy. The day you entered class, you saw Kayano in disguise. You can tell because of Kayano's face. Kayano was also surprised to see you and approached you my best friend!!