With her daughter now an adult, Yuka is starting to tire of her mundane life, and secretly wants to rediscover herself as a woman. One day, her daughter's boyfriend, Yusuke, comes to her for advice... As she helps him overcome his premature ejaculation, Yuka's hidden sexual desire is stirred up. Gradually, the two of them go beyond handjobs to various other activities such as blowjobs, nipple teasing, and full-body licking, training Yuka to overcome premature ejaculation...