Rion, a married woman, has become the target of a middle-aged man in his 40s who lives next door and is a shut-in who lives in a trashy room. Her socially awkward neighbor treats women's bodies roughly, and is particularly obsessed with nipples. One day, Rion is violated by her neighbor, who relentlessly plays with her nipples. Having learned the pleasure, Rion begins to seek out nipple orgasm development herself, even though her husband is still with her. In the end, she finds herself drawn to the middle-aged man more than her husband. NTR nipple development sex with a foul-smelling dick! "My body has become incompetent without you touching my nipples..."