A married woman who indulges in sex by inviting her lover home while her husband stays home - Yumi Anno OBA-176

Today is an important baseball game for her only son, Kosuke. "I really have something important I can't get away from today," Yumi says, sending her husband and son out the door before leaving home alone... Little did she know, her "important matter" turned out to be a secret rendezvous with her casual sex partner, Jinichi. And not wasting a single second, they chose Yumi's house as the location. When the doorbell rings, Jinichi appears. From that moment on, the two engage in "unrestricted sexual intercourse within a certain timeframe"...