High school girl Kokoro is sexually harassed by the same old man on the train every day. Although she hates it, she finds herself masturbating while thinking of that old man and wonders if she's a pervert. One day, her mother introduces her to someone who wants to marry her, and it turns out to be... that same harassing old man. Not only on the train but also at home, days of sexual harassment and clinginess begin—Kokoro's overly developed breasts are fondled by her father's slimy techniques and huge dick, making her fall deeper and deeper…
