Suddenly, I had a very cute sister-in-law! Moreover, when my sister transferred to school, there were many girls around and the boys were alone in class!

Suddenly, my sister-in-law was in the same school year! And I decided to transfer myself to the same class! In addition, the school is a former girls' school and I am the only man! A super harem that can be admired by all men! My sister-in-law took all of my masturbation to the whole class, and it was the worst start ever. However, the information about the owner of Decatin was also spread, and a girl interested in Decatin has tried to rise with that hand! At last, enter the middle harem mode in an unexpected reverse home run!