Our Home's Fox Deity

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.

After getting permission from Noboru and Tōru's father, Kūgen and Kō are allowed to stay in their house. Kūgen shifts into his male form and asks Noboru to bring him to the town's Shinto shrine, in accordance to the custom where a spirit has to ask permission from the local god before using his powers. They discover that the owner of the local convenience store is the local god, Ebisu, who serves as the patron of merchants. After accompanying Ebisu to the shrine, Ebisu orders his shrine's gatekeepers—a pair of imperial guardian lions named Kōga and Eiga to attack Kūgen's group. A battle then ensues which Kūgen wins after "summoning Shin" from the sky. Ebisu then explains that he was only trying to destroy his temple to attract more business. Ebisu also tells Kūgen in private that Miyako's spirit still haunts the land.

While channel surfing, Kūgen gets curious about what happens in school. She then gets Tōru to take her and Kō to Noboru's high school. Meanwhile Noboru is unable to stop worrying about leaving only Kūgen and Kō at home. His preoccupation causes him to lose a badminton game and prevents him from noticing that his classmate, Sakura, has already asked him out on a date. Kūgen then arrives in school and starts participating in the different club's activities. While chasing after Kūgen, Noboru and Sakura are attacked by three Earth Spectres. Kūgen arrives at the scene and rescues Noboru using wood techniques such as "Humongous Tree Branches" and "A Tornado of Sakura Petals". After the fight, Kūgen seals Sakura's memory of the incident.

Kō doubts her capacity to serve as the Mizuchi sentinel after causing several mishaps while trying to help out in the household chores and also after making Tōru feel uneasy by asking him questions regarding his mother. Kūgen then goes out to harvest ingredients for the gourmet dinner that she wants to eat. Tōru also leaves home, rejecting Kō's offer to accompany him. Noboru finds the disheartened Kō, whom he encourages by explaining that Tōru's unease stems from his lack of memories about their mother. Kō follows after Tōru to find him ensnared by an Edamame Bean Woman. During the fight, Kō's face glows from the glowing scales on her face and her dragon race origins are discovered. The Bean Woman unwittingly discloses to Tōru that he was always under the protection of his mother's spirit. Kūgen arrives to free Tōru from the giant beanstalks, allowing Kō to unleash her full powers against the Yokai.

Kūgen notices that Tōru also has the same scar that Miyako once had. This spurs Kūgen to perform a taboo ritual that will allow the bridge between the mortal and the spirit realm to be opened. During the dance-like ritual, Ebisu arrives and commands Kūgen to discontinue the rite, otherwise he will have to enforce the necessary punishment. Kūgen attempts to fight Ebisu, but he threatens to harm the brothers. Kūgen surrenders and allows her hair to be cut off in return for forgiveness. Afterwards, Tōru meets his mother as a spirit for the first time, however she cannot be seen by Noboru. Miyako remarks that she and Tōru are alike before she departs for the afterlife. Back in his convenience store, Ebisu is delighted that he can now sell bracelets created from Kūgen's hair.

On the way home from school, Noboru and Sakura stop by a bookstore where they meet up with Kou and Kuugen. On discovering that Kou came there to get a book by which she could teach herself to cook, Sakura invites herself over to Noboru's place by offering to teach her. Kuugen is bribed by the offer of a homemade chocolate cake. Later when Sakura drops by, Kuugen manages to disrupt the entire cooking process by coating the entire kitchen with cocoa as a part of her research into the chocolate cake's ingredients. To placate the tantrum throwing Kuugen, who still wants to eat cake, Sakura offers to take to the girls to an all-you-can-eat cake buffet. At the buffet, while Kuugen eats herself to distraction, Sakura and Kou get to know each other better. On the way home, they meet the Takagami brothers who have managed to attract the attention of a few low level Book-dwelling Spirits. Kuugen promptly vanquishes them and once again seals Sakura's memory, but someone else has been watching Kuugen's display of power from the sidelines.