Kirihara Kotori

Ryofu Suzu is only in junior high, but she looks like a mature woman. Her mother died when she was young, so she grew up taking care of herself with just her father. Until one night when her father brought a lady home, but her potential step-mother is very petite and cute looking more like a little girl...

Once again, the police are baffled by the serial killings of several young women. Kudou, a detective, is referred to a young girl by a friend. But this girl isn't what she seems - Kudou saw her at the crime scene. Apparently she's a vampire!!

If only I were a boy......

On Yumika's 14th summer, a strange encounter gives her a new lease on life.. Part of Seijunbyou (清純病) anthology.