When I returned to my wife's parents' house, my beautiful sister-in-law was waiting for me. She tempted me forcefully, boldly, and tenaciously... While I was confused, the dam of reason was on the verge of collapse. Even though I knew it was wrong, my heart wavered at the charm that my wife didn't have, and eventually, I ended up having unprotected sex with her! And when I finally found out the reason why she was obsessed with me, I was already too captivated by my sister-in-law to do anything about it...