Kawaiku Nanka Nai Kara ne!

is a Japanese light novel series written by Kazuaki Sena, with illustrations by Sikrosky. The series began publication on June 10, 2011 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Unknowingly, Haru Fumino, the owner of a beautiful girl (?) Who is counted as one of the top three beautiful girls in her grade, picks up a rabbit doll at the school building one morning. It is a memorable item with "Moon Rabbit Kimi" that Hull met when he was young. Haru knew that there might be someone in this school, but in the meantime, his classmate, Mr. Sunahara, took hold of his weakness and for some reason helped her with her "work."

What is the "priestess of the song" that purifies the filth possessed by the song? What's more, I knew the secrets I didn't want to know about Hull's "cuteness" ── !?