In her second year of marriage, Aika is a beautiful wife working as a fitness instructor, admired by many men for her toned body and stunning appearance. Feeling unfulfilled in her stagnant married life, she seeks new excitement and signs up as an aroused married woman looking for affairs. Initially hesitant, she gradually gets drawn into the men's perverted creampie sessions, ultimately succumbing to pleasure and resorting to masturbation, exposing her disgraceful failure as a wife. In the end, her uterus is filled with semen, and she completely falls into becoming a fleshlight.