My Girlfriend Is Shobitch

Boku no Kanojo ga Majime Sugiru Shojo Bitch na Ken (僕の彼女がマジメ過ぎる処女ビッチな件, lit. "My Girlfriend is Shobitch") is a manga written and illustrated by MATSUMOTO Namiru.

Plot
After Shinozaki Haruka confesses to the Class Rep, Kousaka Akiho, he comes to find that the perfect class representative might be a little bit harder to handle than he previously thought!