JAV Tokyo

His father remarried and his new mother was only four years older than Hajime. Hajime's new life with his young mother-in-law, Saki, always lusted after her beautiful, big-breasted, and still youthful body. Hajime, a student in the pharmacy department at the university, mixes up a concoction he has obtained and secretly administers it to Saki as an aphrodisiac. After a few days, Saki's body begins to change... She was so desperate to have her young mother-in-law's body... She munched on Saki every day as the aphrodisiac turned her into a raging whore.