I am still so depressed from this...
There, you can see 2 battler. One, where I just died, and one, where I survived with a kill. Both of them are victories, so there is no way, these two battles can end up in negative when added up right?

RIGHT? Well, no. Combination of killing another player, surviving an entire battle and even a victory bonus do not cover the repair cost. Fuck this dumb game.