Hikari ni Tsuite no Kage no Uta: Chapter A

2007. Japan.

A high school student Katashi Sato, moves to a new city and enters a new school. In it, he gets acquainted with a company of local students: Sajori Hino, Aya Kimura, Kasumi Tsukumo and Akagi Kioto. Katashi begins to get along with the company, strengthens relationships and becomes attached to his new friends. Over time, he begins to notice something strange about every company member. And at some point story transforms from a peaceful life of a student into terrifying nightmare and trying to survive.