Kou is the guardian of the Mizuchi family. She is sent to keep an eye on the Takagami brothers and Kugen, and therefore must live in Noboru's house for the time being. She appears to be helpful, (having asked if she can do anything to help around the house), dedicated to her job, and does not want to be a bother.
Wagaya no Oinarisama
Noboru and Toru are two brothers that have grown away from their family's' secret. The fact that their family can use the Water ki and can ward off demons. But when a demon is after Torus' life, in order for the family to keep him safe they need to awaken the fox-spirit Kūgen. Kūgen will not help for the sake of the family but only for the sake of the children's late mother.
