Gekkou

is a Japanese light novel series written by Natsuki Mamiya, with illustrations by Shiromiso. The series began publication on September 10, 2010 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Hinekure boy Nonomiya wants to get out of his boring daily life. One day, he picks up the notebook of Yoko Tsukimori, a beautiful and excellent grade idol in a class with constant gossip.

A word far from an idol in a piece of paper that sticks out of the notebook ── I found the headline "Killing Recipe" ... From that day onward, my relationship with Tsukimori narrowed at once.

What is the mysterious and strange relationship between a Shinikalist and a cute villain ...!?