My newlywed life at my wife's parents' house. My mother-in-law is kind and loves my wife. My sister-in-law came back to this peaceful house, and my daily life was destroyed. Naturally, my sister-in-law seduced me. I managed to escape, but I never expected that she would join forces with a man I didn't know right in front of me... I was finally consumed by my too-free sister-in-law, and I was caught in the quagmire of infidelity with my sister-in-law...