Member of the Nase family and Mitsuki's older brother. Due to the side effects of his spirit world warrior ability, he is always seen wearing a scarf and muffler. Known to have a little sister complex. Third year high school student. Likes to tease Akihito with Mitsuki.
A skilled Spirit World Warrior and the eldest daughter of the Nase family. To other people, she shows an ordinary personality, but she becomes a wicked character when interacting with the second daughter of the family.
A Youmu who takes the occupation of a Spirit World Warrior and is allied with the Spirit World Warrior Society. She always dresses in a kimono. She, along with Ai Shindou, runs a traditional confectionery store that serves for Spirit World Warrior purposes. She sometimes gives advice to Akihito.
Akihito's mother, and a well-known Spirit World Warrior. She is known for her well-endowed figure and optimistic personality. As a wanderer, she sends off her child elsewhere.
A silver-haired girl who was pursued in the midst of the Spirit World Warrior-slaying incidents. She fights using an automatic pistol and a revolver. Her powers are said to surpass that of an Interrogation Officer.