Satsuki was happy to hear her daughter had found a boyfriend, but when she met him during his visit, she found herself deeply attracted to him. Though she initially resolved to resist, witnessing the couple secretly touching one another ignited her desire, and she could no longer hold back. She gave in to temptation and slept with him. After their first encounter, the two began meeting in secret, deepening their forbidden relationship behind her daughter's back, entangling their emotions further with each passing moment.