Manabu, who worked as a magazine editor in Tokyo, was worried that things weren't going well at work. One day, his father suddenly called him to come home... There, he was introduced to his former teacher, Rina, who was his father's new wife. Manabu was confused and angry that she, who he had always admired, had become his stepmother, and his Kokoro was ignited... Unable to suppress his desire, he crossed the line. Since Rina , Manabu has taken advantage of her kindness and has had multiple relationships with her, but...