a perverted old man living next door who gets excited by the sound of nanami yokomiya peeing every day. one day, he sees her struggling with a lost key and notices her squirming, realizing she's about to piss herself. his long-suppressed desire explodes, and he drags her into his trash-filled room, stimulating her bladder until she wets herself. his urge to piss escalates, and he forces her to take a diuretic drug, leading to a kidnapping rape. she loses control, experiencing multiple orgasms from urinating. through training and raw sex, she becomes addicted and can no longer return to being a normal girl.
