There are powerful beings whose spirits dwell within old objects: tsukumogami. Hyoma is a young man who despises these evil spirits for robbing him of something precious. His mission: to use the supernatural powers granted to him to dispatch these tsukomogami back to their own world, no matter what it takes.

But when Hyoma's grandfather sends him to live with Botan, a kind-hearted girl who peacefully shares a house with an assortment of overprotective tsukumogami, it's more than Hyoma can bear. Can Botan help Hyoma overcome his rage, or will his thirst for vengeance lead him down a dark and violent path?