A friend visits the couple's home. While her husband lies passed out drunk after drinking together for the first time in a while, she's half-forced into having sex with the friend. Regretting what happened, she calls him over again to seal his lips with sex, but ends up sinking even deeper into the mess. Whenever her husband is away, the friend comes over repeatedly for more illicit encounters. Each time, Nozomi's body begins craving pleasure more intensely, eventually developing into full-blown pleasure addiction. Before she realizes it, she's actively seeking out the friend on her own. You can't help but notice the transformation taking place in Nozomi as she gradually becomes consumed by desire for her lover.