Shinobu is a vampire with the body of a child and is the person responsible for turning Koyomi into a vampire.
Shinobu is a character from the Monogatari franchise and has made appearances in the light novel series written by Nishio Ishin, featuring illustrations by Vofan, and published by Kodansha. She has also made appearances in the anime series based off of these light novels: Bakemonogatari and Nisemonogatari, both of which are produced by Shaft and published by Aniplex . Her original design is credited to the writer and illustrator of the light novel series while her anime appearance is credited to Akio Watanabe. She makes her first appearance in Bakemonogatari #1.
Shinobu once had the body of a beautiful woman and the attitude of an experienced vampire. After being defeated by Oshino her body reverted to that of a child. In the Bakemonogatari series she is quite shy and rarely speaks. During the Nisemonogatari series, however, she is far more outgoing and not afraid of speaking her mind and letting her will be known.
A prequel to 2009 series bakemonogatari