Her husband, a company executive, goes on a three-week overseas business trip. Riona, who has felt lonely in her marriage and has been unable to conceive for years, finds herself with too much free time while he is away. Suddenly, her husband's subordinate, Uchimura, visits her. Driven by loyalty to his boss and a deep longing for Riona, Uchimura slips into the gaps of her heart and proposes a secret relationship. Between Riona's desperate wish for a child and Uchimura's passion, the two spend the next 20 consecutive days in a cycle of breeding-focused creampie sex...
