This is a story about the former Special Grade Curse Araragi Koyomi and the Cursed Spirit currently dwelling inside his shadow, who used to be the Legendary iron-blooded, hot-blooded, cold-blooded vampire, Kissshot Acerolaorion Heartunderblade. With the intervention of the Special Grade Jujutsu Sorcerer Oshino Meme, the case regarding Araragi Koyomi came to a close as a failure.