The wife/mistress, Koibuchi Momona, who constantly craved ejaculation through coquettish and lewd words, and whose personal sex machine was extremely convenient, is START-607.

A busty housewife, addicted to her affair, loses her mind amidst the guilt and unprotected pleasure, repeatedly uttering vulgar phrases like "Please fill me with your semen." She begs three men to ejaculate inside her and greedily sways her hips. After being played with by the men, this shameless wife's lustful instincts are fully unleashed.