I came to Tokyo from the countryside and work part-time at a convenience store between my university life. Recently, my work overlaps with my coworker, married woman Rinko, and we have become closer. One day, I found a condom in a product that was being discarded... When Rinko saw it, she said, "I haven't had sex with my husband recently." Hearing this, I, an amateur virgin, took this opportunity to push hard! At first, she brushed it off by saying, "Don't tease me, old lady," but when I continued to push, she suddenly said, "Okay... come here," and took me to the bathroom...! "Let's do it before the customers come," and we started raw! Since then, we've been having sex in between work and having short-time affairs. Thanks to Rinko, my dick has no time to rest, and I'm working like a black company every day.