Fell in love with his friend's older sister when she came over to visit

This guy went to his best friend's house to visit, and then for some reason, he liked this Mukai Ai sister. Then he tried every way to approach her, and then performed his depraved acts. This guy acted quite decisively, and it turned out that this woman was beaten to a pulp. After that beating, the two beat each other many more times, causing the other boy to discover that his sister had been raped by her best friend. How the fascinating story unfolds next, please join us to watch!!