A young man who looks after Yokai children. He has a wide network of connections among Yokai. Diligent and kind-hearted, he treasures Senkichi deeply. Male.

Yasuke's adopted son. Unbeknownst to him, he was once a Great Yokai named Bakuryan and Yasuke's older brother. Other Yokai know this but keep it a secret. He would do anything for his brother. He went to the Western Celestial Palace to train. Male.

Tsuyumi's uncle and the Magistrate of the Eastern Earth Palace of the Yokai Magistrate's Office. A member of the Royal Fox Tribe and a Great Yokai. He is exceptionally beautiful. His speech is formal and authoritative regarding official matters, but casual and commanding in private. He is terrifying when angry. Because Tsuyumi is the son of his deceased sister, he overprotects him to the point of banning him from going out. He calls Sakunomiya a "Western Dog" and fights with her every time they meet. He has three large, luscious tails. Male.

A mischievous child and Tsukuyo's nephew. He calls Tsukuyo "Uncle." A bit of a crybaby, he loves Tsukuyo dearly. Male.

The princess of the Nekomata (Cat Yokai) tribe. Fickle and a Great Yokai. She is stunningly beautiful. Her speech is elegant and haughty, never using informal language. She can transform into a cat. She is Hatsune's best friend. Her hobby is collecting greedy and evil souls. She is seductive and enjoys touching others' hair, especially Sakunomiya's. She is close with Sakunomiya and addresses her as "You" or by name. Female.

Ginne's older sister and the twin daughter of Hatsune and Kyuzo. Kind-hearted, she trains at the Western Earth Palace of the Yokai Magistrate's Office. Her master is Sakunomiya. She uses polite speech with everyone older than her, except Yasuke. Female. She calls Sakunomiya "Master."

Amane's younger sister and the twin daughter of Hatsune and Kyuzo. Kind-hearted, she trains at the Western Earth Palace of the Yokai Magistrate's Office. Her master is Sakunomiya. She uses polite speech with everyone older than her, except Yasuke. Female. She calls Sakunomiya "Master."

The Magistrate of the Western Celestial Palace of the Yokai Magistrate's Office. An Inugami (Dog God) and a Great Yokai. She fights with Tsukuyo whenever they meet. She loves sweets and has an excellent sense of smell. She is the master of Amane and Ginne. Her speech is calm, composed, and detached, often sounding as if she is observing the listener. Depending on the situation, she can be playful or cryptic. She uses short, definitive sentences. Female. She calls Tsukuyo the "Eastern Fox" and is close friends with Omitsu.

Mother of Amane and Ginne and a princess of the Hasa tribe. In the past, she was immature and only sought out handsome men, but she matured after truly falling in love with Kyuzo. She is Kyuzo's wife, kind, and treasures her children. She is Omitsu's best friend. Female.

An Inugami and Sakunomiya's servant. Sakunomiya, Amane, Ginne, and Senkichi call him "Pong." He is kind but tries to act like a superior senior to Amane, Ginne, and Senkichi. Cute. Male.