Tsuki Koi

is a Japanese light novel series written by Chiaki Yamashina, with illustrations by Otohiko Takano. The series began publication on November 10, 2007 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
I looked up at the sky. As rumored, the moon was floating in the night sky illuminated by the city lights. "-Can we meet even if it's not a full moon?" Shibuya Hachiko-mae intersection. I met a woman. Izumi, the "moon-waiting woman in Shibuya," is rumored to have been waiting for her boyfriend Toki who died at the intersection for many years. Her straight black hair looks dazzling in my eyes, who are accustomed to seeing the colors dyed in brown and gold. And I was attracted to her girlfriend ... Two love fantasies about "Shibuya's moon-waiting woman" Izumi.