Rin was a remarried woman. Her husband had previously lost his wife and was living alone with their son until they decided to marry and live together as a family. Although he was happy and content, there was one thing that worried him - despite having lived under the same roof for half a year, he couldn't seem to get along well with his stepson. He often found himself wondering how he could make them closer. One day during his son's holiday, hoping to improve their relationship, Rin went to her son's room and asked if she could help him practice yoga. As she bent over, her son caught a glimpse of her round ass and became aroused. Surprised by this reaction, Rin quickly fled the scene. However, unbeknownst to her, her stepson had been attracted to her since their first meeting and saw her not just as a mother figure but also as a desirable woman...
