Wife Miyuki supports her husband's dream of becoming a successful writer. Her husband works tirelessly as a part-time novelist, striving to make his mark. One day, his editor, Satojima, visits their home and makes Miyuki a bold proposition: "It's up to you whether your husband ever sees the light of success." Desperate not to disappoint her husband, Miyuki agrees to Satojima's demands—a physical contract in exchange for pushing her husband's manuscript into the final review stage. But the outcome is more shocking than she ever imagined. Overwhelmed by Satojima's thick, powerful, and intensely vigorous cock, Miyuki repeatedly reaches climax after climax. This experience awakens something new within her, opening the door to an entirely different path in life.