On his first visit to the family of the woman he hopes to marry, he learns that she comes from a prestigious Kyoto household and is welcomed by her kimono-clad mother, Kanna. Looking him over as if judging his worth, Kanna moves closer and promises to test whether he deserves her daughter. She toys with his cock and whispers filthy words into his ear until he cannot hold back and comes. Even after ejaculating, the forbidden thrill of being brought off by his girlfriend’s mother keeps him hard. Aroused by his reaction, Kanna begins secretly controlling his ejaculations and eventually starts sleeping with him. Now hopelessly addicted to her teasing and dirty talk, he continues their affair behind his girlfriend’s back.