High school student kokoro was molested by the same old man on the train every day. although she hated it, she would masturbate thinking of that old man, wondering if she was a pervert. one day, her mother introduced her to the man she wanted to marry, and it was surprisingly the same old man. days of being molested not only on the train but also at home began. kokoro's overly developed breasts were played with by her stepfather's sticky technique and big cock, and she kept falling deeper.