Yumi's husband is away on his own and is living a boring life. To kill time, she goes out for drinks with Kuroi, her colleague at her part-time job... She remembers the aching feeling in her womanhood when he sees the strong body of a struggling student who works part-time jobs, and she can't help but start a time-limited affair with him. Even at her workplace, Yumi and Kuroi repeatedly engage in unfaithfulness during breaks, devouring pleasure. Both of us were captivated by the intense pleasure within our limited time... Before she knew it, Yumi couldn't live without a young cock all the time, no matter where she was...