Villain protagonist (Or at least lacks basic morals)

Firstly, a romance with a male protagonist? Sign me up.
Secondly, he's a (hot) hitman

Badass POW POW SLASH counter: 10/10
Biceps counter: 100/10

Is he evil if he kills evil people?
Hmmm
but hes HOT

Evil counter 8/10

So he's like co-protagonist but mans is insane lolol

Yandere counter: 8-9/10

S(he)s hot so

Evil counter: 9/10

I read this AGES ago so bear with a shitty description (talking as if I deliver shakespeare writing on any review) but mans get a brain transplant and boom all of a sudden it's "Mouse" Kdrama all over again (which btw watch since youre following this list bc its the same plot)

Evil counter: Cant for the life of me remember/10

Think tokyo ghoul except.... even weirder

Evil counter: He goes insane sometimes and like idk/10

Sometimes I lose brain cells and forget to add the obvious mangas to this list. I dont need to explain this manga as Im expecting everyone to know about it (unless youre new to manga)

Evil counter: Yikes/10

I think so?? might have to re-read thihi

MC was a member of an organisation that killed people and now he still kills "people" but like they arent necessarily good people but he still has no problems killing humans either

Evil counter: 8/10?

Ah so technicalllyyyy it isnt exactly evil MC but the FL is yandere and murderer and the ML (MC) is in a way an accomplice but even though it's new its so good already i cant wait for more chapters ahh

FL evil counter: 9/10 ?
ML evil counter: they deserved to die anyways/10

Update: MC is pretty messed up mentally now but honestly anyone would be in his situation