Prestige exclusive actress Kaname Otori seduces her younger sister's boyfriend♪ The boyfriend is waiting at her house for her to return from her part-time job. Kaname, the older sister, who was drinking at home and feeling horny, seduces him! She brushes off his desperate resistance and takes matters into her own hands! Her actions escalate, from peeping at his sex with her sister to ambushing him in the toilet to play with his cock and check his reaction. One day, he is completely captivated by the intense sex with the older sister who barged into his house! He becomes a prisoner of her technique, and the two develop a forbidden relationship...