I'm looking for manga (ideally romance) where one girl does something really shitty, and another girl gives her what she has coming to her.
I recently finished Unbalance x Unbalance and although the ending was bananas in the worst of ways, I was surprised at how much I enjoyed
Spoiler (mouse over to view)
Ji-Soo slapping the shit out of Hae-Kyung
It doesn't even have to be direct bodily harm that's inflicted, I'm just interested in reading a manga where a girl does something despicable (to the protagonist or otherwise) and another girl dishes out justice to her.
Preferably no shoujo/josei, but I'll make an exception if it's extraordinary.