My childhood friend who saved me after being bullied is gang-raped right in front of me...

I've been a bullied child since I was a child. Every time, the person who helped me was my childhood friend Hiroko, a class representative. Even as an adult, my timid personality remains the same... Hiroko-chan accidentally passed by while she was being moaned as usual, and was saved by accident. So they noticed Hiroko and got into my house...