Premature ejaculation, a common male problem. Sasa met a student named Shin at her part-time job; he was one of them. Sasa and Shin had a hurried relationship, stealing brief moments together, and his premature ejaculation actually made things convenient. However, during this hot spring trip timed with her husband's business trip, Sasa, who wanted to release her pent-up sexual desires, found herself troubled. And so she made up her mind...to satisfy her own desires during the one-night, two-day trip, and to transform Shin's premature ejaculating dick into one that suited her tastes...
