VS!!

is a Japanese light novel series written by Izumi Nishiki, with illustrations by Nao Shirahane. The series began publication on January 10, 2012 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
I'm No. 21. He is a low-ranking combatant of an evil organization.

While yelling the key, it's all black tights that are overthrown by the transformation hero, that. Key! Every time, I challenged the hero with a new monster without discipline, and every day I was defeated. I don't get tired of everyone. Now, will the ally of justice come to Kotenpan today?

A hot-blooded story of a small fish combatant who challenges an invincible hero who is not even a monster!