Bakemonogatari manga volume 13 features story by Nisioisin and art by Oh! Great.

With Kiss-Shot restored to her former vampiric glory, all that remains is for Koyomi to become human again. But a disturbing sight brings Koyomi face-to-face with what it really means to be a vampire, and he’ll need to figure out how to return to humanity quickly lest he truly becomes a monster…