Sho, a second-year university student, meets the plain, bespectacled Koharu at a group date. Although her face is a 65, he is captivated by her 120-point explosive tits and they head straight to a hotel. After repeated creampies, he entrusts his entire life to his devoted girlfriend, eventually abandoning both his part-time job and job hunting. He becomes a kept man... a life of decadence with a woman whose ultimate body ruins people.