Yuusha ni wa Katenai

is a Japanese light novel series written by Shiro Kurita, with illustrations by refeia. The series began publication on February 10, 2012 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
The three demons who have the power next to the demon king and have pushed people to the depths of fear in a different world. However, he was easily torn away by a brave man, and now he is reborn as a human being and leads a mediocre high school life.

In front of them, a transfer student who gives off the proof of the brave "wave of light" appears. Did you chase so far to get rid of yourself! A frightened trio. I'm prepared to sit down and forgive this ... But they didn't know. After that, the "Dark Wave" of the Demon King, who is more scary than the brave, is approaching!

Fantastic school comedy of bosses who carry the fate that can not be won.