My brother and Mai have been married for three years, and no matter how beautiful his wife is, her relationship with her husband (brother) grows colder year by year. - One morning, Mai had a fight with her husband over a trivial matter, and the stress of her daily life had reached its limit.As a result, she was thinking about her husband's brother (brother-in-law)'s house...and entered Mai's room. - When she feels the limits of her daily desires, she crawls into her brother-in-law's sheets and seduces him...and then pours out all the desire she had accumulated in her boredom in her private life and has intense, intense sex with her brother-in-law. - Even though I know it's no good, I can't stop the temptation of my step-sister, my sense of immorality toward my brother, and my reason is blown away, and I've been entangled in the sheets many times in the morning, and I've been creampied.