Yoshioka and his coworker Takigawa went drinking after work. Still not satisfied, the two decided to continue drinking at Takigawa's house. Despite the late hour, Yoshioka developed feelings for Eri, Takigawa's large-breasted wife, who was preparing a nightcap for them. However, due to heavy drinking, they ended up arguing about work. Although the situation calmed down, Yoshioka, frustrated, decided to sneak into Eri's room...
