Houkago no Strange: Usual Days

is the first volume of the Houkago no Strange light novel series, written by Koichi Osaki and Illustrated by Kyo Yamamoto. It was released under the Dengeki Bunko Imprint in January 2003.

Synopsis
Private Rokuriku Gakuin-. It's a normal school, but for me it was a very strange and mysterious school. The cause seems to be "strange". The guy who touches it awakens to a strange ability. The main character of this story, Emperor Kamidai, was one of them. His strange everyday life. That is really-. -Oh, the introduction was delayed. My name is Takahiro Oikawa. He was a close friend of Emperor. -It was, and the past form is because I have already been killed by "strange" ...

(source: Amazon JP - Translated)