A professional assasin with a calm expression,smart,and tough personality. Behind her cold-ish behavior she hid a dark past within herself. And with that,she was ordered to assasinate the infamous octopus-like-alien (korosensei).For the first time,she went to a school and experience a much normal life like other teens. That,is when she know about the END-class and met with a red haired boy(.....) #4 in Assassination #40 in Korosensei #41 in Classroom