Villain protagonist (Or at least lacks basic morals)

Its dual POV, one FMC one MMC

The FMC is messed up mentally but more in a truamatised way.
The MMC is a yandere and will do ANYTHING for her including murder etc.

FL evil counter: Stop being obsessed with your mum/10
ML evil counter: ultimate simp/10

so MMC is a serial killer and FMC wants him to kill someone. She seems more insane, but he's the one who kills so theyre both way out there morally i love it

evil counter: 9/10

So this one is kinda up for debate. The FL has grounds for what she does, but she does take revenge and play with peoples emotions (again, justified but still), so im putting it here.

Evil counter: 7/10