Her husband, who runs a company, is on a business trip overseas for three weeks. Tsubasa, a full-time housewife, is gloomy, thinking, "I can't have a baby again..." Then, her husband's subordinate, Matsumoto, appears before her. "He'll take care of Tsubasa." Tsubasa, who had a good impression of Matsumoto, feels relieved that her anxiety while her husband is away has disappeared... However, a few minutes later, Tsubasa is raped. From that day on, Tsubasa's heart is changed by the 20 days of continuous creampies every day, which are sure to make her pregnant...