I really want my sister-in-law to get pregnant 100%... My sister-in-law, Sato Haruki, is even younger than me. (YSN-335)

A woman possessing both beauty and a perfect figure—that's my brother's wife, "Yaoxi." Two years younger than me, my sister-in-law always treats me very gently. But I never imagined she'd have a sexual relationship with our father… I had no choice but to use this to blackmail her and satisfy my own desires!!