She is a student who was formerly popular at the same school as Ayase Momo and Takakura Ken. After finding one of Takakura Ken's kintama, Aira comes under the pretense that she is the "chosen one" that is meant to protect the world from evil and sees Ayase Momo as being her enemy. However, she unadmittedly serves as one of her main allies whenever the two are faced with the paranormal.
