Hitotsu Yane no Shita de Class Kanpeki Seisou Iinchou no Himitsu wo Shitte Iru no wa Ore Dakede Ii.

is a Japanese light novel series written by Kanae Saito, with illustrations by Satopote. The series began publication on May 10, 2022 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Live with the perfect neat and clean president (a childhood friend who is actually afraid) who should have been estranged!? Kurokawa Svetlana is a super chairman with good behavior and excellent results. And she is also my childhood friend who reunited for the first time in a few years. However, there is a "certain" secret in Kurokawa that looks perfect at first glance. "Takkun, there is! Maybe there is something-- Pigyaaaaaaaa" Actually, she was so scared that she couldn't go to the bathroom alone at night! I decided to live with her because of her parents' overseas transfer to Kurokawa, and I will cooperate with her to overcome her weaknesses. "Hey, Taku-kun .... I'm scared alone, so why don't you sleep together?" Hey, are you okay with my high school life !?