Unable to sleep or find true satisfaction in his daily life, Kou Yamori stops going to school and begins wandering the streets at night. He encounters a girl named Nazuna Nanakusa who is a vampire and shows Kou the joys of being a night-walker. This results in Kou wanting to be a vampire as well, but in order to achieve his goal he has to fall in love with her first.

This is a server for Yofukashi no Uta written by Kotoyama, also known as Call of the Night or Song of the Night Walkers. Be it someone who is excited about the anime or someone who reads this manga with every release, everyone is welcome in this server.