Utlöser av misstag reparationsmannens spänning - Peeping Wife's Boobs

An air-conditioning contractor, while working on an air-conditioning unit, lusts after Yuu's nipples, and jumps her, ejaculates inside her. After that, he comes over several times, but she gets addicted to the pleasure of sex, and the affair goes on and on... What awaits them after the collapse of their marriage?