An ordinary guy living in Tokyo comes home after work to his beloved busty girlfriend Mayuki, who greets him with dinner, a hot bath, and passionate sex. Her massive breasts and loving personality drive him crazy every day as they explore each other’s bodies with deep affection, leading to intense scenes including deepthroat, paizuri, raw pounding missionary and doggystyle until he gives her a creampie, showing their happy and lustful daily life together