Aya is too sensitive and comes quickly. When Aya comes, the couple's sex is already at its limit and stops. The husband was not satisfied with such a married life, and in the midst of this, he bumped into a man from his former part-time job and started drinking. However, Tachibana was also a man. Because he was drunk, he was excited by the drunk Aya's defenseless eroticism and raped her, even though he felt bad for Tomoki. However, even though he was raped, Aya had an indescribable feeling. Tachibana continued to have sex with Aya on another day. Aya is getting stuck in a quagmire. Tomoki comes home from work and witnesses Tachibana and Aya's relationship, but he is too timid to tell him about the sexual acts with Tachibana. Aya is unable to tell him about the gradually changing relationship with Tachibana, but her husband is frustrated by Aya's violent changes in behavior, but he becomes addicted to Aya's sexual acts.