Oinari-sama. The Seal is Broken

The Takagami brothers return to their mother's hometown only to find out that she was the last Priestess of the Water and that the elder sibling, Noboru, is now the head of the Mizuchi Family. Tōru, on the other hand, is currently being targeted by Yōkai for the power he possesses. In order to protect him, the Guardian spirit, Kūgen Tenko, is released from the seal that held her captive. Later that night, the enemy attacks and it requires both Kūgen and the sentinel Kō's combined abilities in order to vanquish the evil spirit. Afterwards, the brothers return home with both Kūgen and Kō, who will both serve as their guardians from spirits who mean to do them harm.

今は亡き母、美夜子の生家である三槌家に呼び出された高上昇と透の兄弟。二人が呼ばれたのは、透が見た夢が原因だった。大ばば様から透が妖怪に狙われていると聞かされる二人。 　その妖怪から身を守るためには、裏山の祠に封印されている天狐の力を借りなければならないというのだが…。