Shinobu is from the Nisio Isin?s Monogatari franchise. Shinobu lives with Meme in the abandoned school building. She appears to be an eight-year-old girl, but she was originally a beautiful vampire named Kiss-shot Acerola-orion Heart-under-blade who has lived for more than 500. After the events at the end of Koyomi Vamp, she was left in a weakened condition with no powers or traces of her original personality, and therefore has had to abandon her former name and to nourish herself through occasionally sucking Araragi’s blood.