Sara is too sensitive and comes quickly. When Sara comes, the couple's sex is over and they stop having sex. The husband is not satisfied with their married life, and one day he bumps into a man from his former part-time job and they go drinking together. However, Mine is excited by the drunk Sara's defenseless eroticism and rapes her. However, despite being raped, an indescribable feeling begins to grow in Sara. On another day, Mine continues to have sex with Sara. Sara is getting bogged down in a quagmire. When Nobu comes home from work, he witnesses Mine and Sara's relationship, but he is too timid to tell her. Sara gradually changes as she has sex with Mine. Although she is unable to tell her about her relationship with Mine, her husband is frustrated by Sara's intense changes in her behavior, but he becomes addicted to Sara's sexual acts...