The travel agency has an excellent compatibility with her husband's child, and her stepmother, who is addicted to intercourse, is July Rina ROE-178.

Rina, married to a man with a stepson for three months, gets along well with her husband, but her relationship with her son, Kazuki, is strained. At her husband's suggestion, they go on a hot spring trip, which becomes an opportunity to get closer to each other. However, Kazuki, feeling a surge of desire for Rina, cannot suppress his rising passion and makes his move while she sleeps... Rina experiences multiple orgasms and is completely immersed in pleasure during his intense and persistent thrusting. Faced with this perfect harmony that she could never experience with her husband, her body gradually becomes unable to resist the pleasure brought by his hard penis...