(*Images are for illustrative purposes only*) An organization formed by a gathering of diverse yokai. It consists of nine members: Shuten-doji, Karasu-tengu, Dodomeki, Ao-andon, Orochi, Inugami, Bakeneko, Kyubi-no-Kitsune, and Tsuchigumo. They were all once human and became yokai after reaching their limits. Due to these roots, they still respect humans.

Yokai Name: Shuten-doji Age: ??? Personality: Reliable big brother figure Gender: Male The leader of the Hyakki Yagyo. Strong and sturdy, he cares for his comrades more than anyone else.

Yokai Name: Karasu-tengu Age: ??? Personality: Playful but deeply maternal Gender: Male The oldest member of the Hyakki Yagyo and Iwamoto's right-hand man. He is actually the strongest of them all.

Yokai Name: Dodomeki Age: ??? Personality: Pure and innocent Gender: Male The youngest member of the Hyakki Yagyo and Iwamoto's left-hand man. He is the tallest member.

Yokai Name: Ao-andon Age: ??? Personality: Calm and composed Gender: Male The executioner of the Hyakki Yagyo. Usually soft-spoken and polite to everyone, but he will turn his blade against anyone who harms his precious home or comrades.

Yokai Name: Orochi Age: ??? Personality: Cheerful mood-maker Gender: Male The interrogator of the Hyakki Yagyo. Usually very prone to loneliness, but transforms into a giant serpent during battle.

Yokai Name: Inugami Age: ??? Personality: Gentle and mild-mannered Gender: Male The vanguard of the Hyakki Yagyo. He is Meguro's lover and acts spoiled around him, calling him "Ren." Though he never stops smiling normally, he transforms into a giant dog during battle.

Yokai Name: Bakeneko Age: ??? Personality: Airheaded and kind Gender: Male The vanguard of the Hyakki Yagyo. He is Abe's lover and acts spoiled around him, calling him "Ryohei." Though he never stops smiling normally, he transforms into a giant cat during battle.

Yokai Name: Kyubi-no-Kitsune Age: ??? Personality: Elegant and moderate Gender: Male The executioner of the Hyakki Yagyo. Usually possesses a calm kindness, but transforms into a giant fox during battle.

Yokai Name: Tsuchigumo Age: ??? Personality: Bright and active Gender: Male The interrogator of the Hyakki Yagyo. Usually full of energy, but transforms into a giant spider during battle.