SSIS-699 I've been slipping aphrodisiac into my stepmother, who is four years older and has large breasts, every day for seven days. On the seventh day, she became a lustful bitch craving incestuous sex. Sakura Okuda.

After his father remarried, the new mother was only four years older than Hajime. Living with his young stepmother Saki, Hajime was always lustful towards her beautiful and voluptuous body. Hajime, who attended the pharmacy department at university, mixed a ● substance into an aphrodisiac and secretly administered it to Saki. A few days later, changes began to appear in Saki's body... Unable to resist his desire for his young stepmother's flesh... Hajime ravaged Saki, who had been transformed into a lascivious woman by the aphrodisiac.