16 years old. The youngest heroine with short wavy blue hair. Despite a seemingly quiet personality, she has high physical ability and is a talented kunoichi (female ninja). She has a dark past and seems to hate her own ability, which is to erase other people's memories. This makes her always try not to get too close with other people, so that she won't get hurt when she has to makes them forget something, or even about her. Her ability makes her relationship dynamics with her three men interesting but complicated