Tonosama Kibun de HAPPY!

is a Japanese light novel series written by Tomonori Sugihara, with illustrations by Rei. The series began publication on March 10, 2004 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Kazuma Asou-First year of Tianjin Gakuen High School! Known as "Do Hentai". Or "Peeping Devil". Or "no ability". For example, "The prestigious school's mess." That's why "The erotic book I lent to him is definitely missing a few pages, be careful." ... Kazuma, who has wanted the stigma of those schools, has gained tremendous power! His first command was ...!?