A perverted old man who gets excited every day by eavesdropping on the urination sounds of his neighbor, Shioka. One day, he sees her struggling with a lost key. When he approaches her, she clutches her crotch and squirms, making him realize she's about to burst. His long-held desires explode. He drags her into his trash-filled room, stimulates her bladder until she wets herself! Her urge to urinate escalates further, so he forces her to take a diuretic aphrodisiac and imprisons her for rape! Her reason shatters, and she repeatedly reaches orgasm in incontinence! Brain-frying training sex drives her mad until she can never return to being an ordinary girl...
