Her daughter has reached adulthood, and Yuka, who has begun to get tired of her ordinary life, secretly wishes to regain herself as a woman again. One day, I received a consultation from her daughter's boyfriend, Yusuke. While helping him overcome premature ejaculation in her course, Yuka was violently shaken by her hidden libido in her chest. The two who gradually escalate continue training to overcome premature ejaculation with various plays such as blowjobs, nipple torture, and whole body lipping, not just handjobs.