One of the four member of the "Sacred Beast Four Family", he materializes his spirit in form of an Okami (a giant white wolf). He is the one who saved Shino, Sousuke, and Hamaji during the destruction of the Ootsuka Village. He is the one who asks Sousuke and Shino to find the other bead holders for an unknown purpose. He is cold and calm, but he most likely had a close relationship with Shino in the past, as shown in he and child Shino holding hands while walking. And he, in fact, cares for Shino a lot. Rio doesn't smile a lot, but he once smiled gently while gazing at the sleeping Shino, which was an inspiration for Daikaku to finish his dolls.
Rika was once the star of her school, because she was the best at high jump but after an injure she couldn't go on and never jumped again. Also her boyfriend broke up with her and started to go out with the new star of athletic sports. Rika can't deal with the younger girl's presumed superiority and the stress at school. With the chatname 11 she finds people sharing the plan to destroy the school.
A timid girl who is a big fan of Aya. It is revealed that she is Ryuu Miyazaki's sister. She despised her life, having a divorced mother and a new father-in-law. Because she was in such despair, she and her brother, Ryuu Miyazaki, killed their mother and her new lover. Later, she wanted to replace Kazuki as the one who is most close to Maria, obtains the box, "Sevennight in Mud". Gradually, she possesses Kazuki's body for an increasing amount of time each attempt. However, the siblings realize they still have each other despite their mentally torn family. Riko willingly gives up the box, and Miyazaki is sentenced to prison for murder.
A friend of both Riko and Haju as well as their school's idol. She is aware of Riku's feelings for her but she feels nothing for him, opting to treasure the friendship with Haju more and ignoring Riku's hints. Things change when the rumors about a video turn out to be real.
She is a member of the Chemistry Club and in charge of selling the love potion. She's cheerful, a bit childish and can be stubborn at times. She is easily touched by Yuuki's gesture because her boyfriend rarely displays his affection for her.
"I must hang in there and do my best!" A very diligent girl in her life, of course in flying, too. But she's very obstinate and rarely shows her true thoughts. Now with her new house, maybe it's a chance to change, maybe a chance to find herself.