Living with his brother and sister since the two just got married, gradually a vague affection also arose between his brother and the beautiful sister-in-law Hatano. Every time he sees her as a dick, he feels uncomfortable in his body because she always dresses sexy and performs very stimulating and provocative movements in front of him. As for her sister-in-law, she was actually extremely lewd, bored with homegrown plants, and began to look for young men to satisfy her lustful nature and her younger brother was her target. The times when the husband is away from home are a favorable time for the two to carry out clumsy and incest love affairs with each other. Knowing that doing so is wrong with her brother and husband, but she knows how to do it when both of them can't control the other's attractiveness.