I get your point but that shouldn't be the case. I know that the brother is an ass but he is not the one that beat up MC's sister. If you think of it objectively, the brother has nothing to do with the MC's sister being beat up, it was all work of the bitch. The bitch is only using her brother so that she wouldn't receive any retaliation but the brother doesn't have any direct relation in her actions. In fact, the bitch beat up the MC's sister without the brothers knowledge.
So in the sense of true equality it should be the bitch that gets beat up. This is very unfair and unjust, so what if she is a girl? She is the one that deserves a beating.

Although the brother is an ass it should be the bitch that gets beaten, I don't get it why the MC retaliate to the brother and not the bitch and her friends. It kinda pisses me off.
I'll be disappointed if the bitch doesn't get beaten.