To help with the family finances, female college student Tsumugi has been having sex with middle-aged men to earn pocket money. One day, her classmate Hashimoto, who Tsumugi really dislikes and is the child of her father's new wife, arrives. He sees the evidence of the sex, and Tsumugi is unable to resist. Looking down on him as the lowest of the low, he lifts up her skirt and caresses her obscenely, wetting her panties. As if to enjoy the look of disgust on her face, he thrusts his penis into her vagina, making her cum with his selfish creampie. Despite her contempt, she discovers the pleasure of orgasm...