Malevolent Spirits: Mononogatari Vol. 2 (manga)

Tsukumogami can be dangerous, as Hyoma, a fledgling Saenome, has seen firsthand. After moving in with Botan, a young woman with six tsukumogami caretakers, he has to admit that there may be exceptions - but he's still on high alert. When he learns of Botan's true role in the world of tsukumogami, he decides he'll need to step up in order to protect her.

And when Botan's family sees his true power, they decide he might be just the right person... to marry Botan!