My mother's useless boyfriend relentlessly played with my nipples every night, turning me into a high school girl prone to premature ejaculation. (Akana Ito, DVAJ-696)

In the home where high school girl Ito lives with her mother, her mother's boyfriend moves in. This useless man, who doesn't even work, secretly stares at Ito with lewd eyes. One night, the man begins to relentlessly grope Ito's breasts. "I love sensitive nipples the most," the man says, pinching her nipples with his fingers. Although Ito feels disgusted, she can't help but moan. Her nipples are pinched and licked, and finally even licked in circles with his tongue... Ito reaches orgasm under this excessive nipple torture, but it doesn't end there. From that day on, she is subjected to this lewd play every night. The inescapable nipple harassment turns her into someone prone to premature ejaculation, capable of orgasm at any time...