NASH-825 Invited by my brother's wife who is beautiful but too much of a pervert...

I had business in the street where my brother lives, so I visited his place for the first time in a while. However, my sister-in-law, who has looked down on me because we went to the same ● school, suddenly played a trick on me when my brother wasn't looking! I thought she was quite bold, but before I knew it, I was locked up in the toilet and finished off. To make matters worse, she told my brother to send me home and then came to my house herself… Seven sister-in-laws with raging libidos appear. Enjoy!