The Demon Prince of Momochi House, Vol. 5

Himari Momochi inherits Momochi House, an estate that exists on the barrier between the human and spiritual realms. The waters of the seven sacred falls have become polluted, and Himari, Aoi and the shikigami cross over to the spiritual realm to find the cause. But during an attempt to purify the waters, Himari is taken away by the dragon god!