---This sort of thing isn't allowed at school!--- His father was Shuichiro Ayukawa, president of The Ayukawa Group, who had in a single generation wiped out the competition. His mother, Satomi Ayukawa, was the feared and merciless headmistress of the school he attended. With such formidable parents, average protagonist Hideaki Ayukawa didn't live life so much as was shoved along its narrow path... Hideaki's sole relief from the stress was the homeroom teacher for whom he longed, Ms. Keiko Sawaguchi, and his friendship with her son Ayumu, until... Amid those days, Ms. Keiko asked Hideaki to discuss something in private. In an empty classroom, to the protagonist whose chest was tight with desire and anticipation, she imparted words... The slow grind of gears, the blood of the rising Ayukawa family. A overflowing thirst for ripeness originated from within drags Hideaki into a world of perversion.