My newlywed life was spent living with my wife's family, and although there were moments where I had to be cautious, I was enjoying an ordinary kind of happiness. However, everything changed when my sister-in-law returned home. Her seduction was bold and utterly beyond normal boundaries. At first, I was completely bewildered, but gradually, her wild personality and stunning beauty began to shake my heart, drawing me in little by little. The moment I became one with her sweet body, I could no longer suppress my desires, and shamefully, I became completely captivated by her.