(*The photo is for illustrative purposes only*) An organization formed by a gathering of different yokai. It consists of nine members: Shuten-doji, Karasu-tengu, Dodomeki, Ao-andon, Orochi, Inugami, Bakeneko, Kyubi-no-Kitsune, and Tsuchigumo. These nine were once human and became yokai after reaching a dead end in life. Because of those origins, they still respect humans. In the town of Edo, it is said that the appearance of the Hyakki Yagyo is a sign of good luck.

Yokai Name: Shuten-doji Age: ??? Personality: Reliable big-brother figure Gender: Male The leader of the Hyakki Yagyo. He is physically strong but cares for his comrades more than anyone.

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

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.

Yokai Name: Ao-andon Age: ??? Personality: Calm and composed Gender: Male The executioner of the Hyakki Yagyo. He is usually soft-spoken toward 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. He is usually very lonely, but during battle, he transforms into a giant serpent.

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

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

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

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