|Nakua (南久阿 Nakua), also called Naqua, was originally a spider goddess that protected Sasanaki city and all of mainland Japan.
In the past, worshipers used to offer her human sacrifices in return for divine protection, but the practice had since declined. She resides in the basement of Hiro's school and, during the night, devours students who were lured there by a ghost story (in return, she protects the school, which she claims is a fair deal). Despite the fact that Hime choses not to interfere with her activities, both Riza and Reiri decides to fight against her and drive her away from the school.
- Main article: Nakua