Psychopath MC

Locked away in a mental hospital, Naoko Kirino recovers from major trauma caused by a freak accident at her school wherein acid burned her face. But for the plucky heroin and the staff within, the never ending nightmare has just begun!

Same as pumpkin night!

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A young boy named Mu Bai embarked on the path to becoming a professional killer

7/10

MC is still growing! But thus far I see the ‘psychopath potential’

He was suddenly summoned to another world one day. Monsters poured out, a huge disaster incoming. His ability the lowest. [Player's level is low] [Your level is hopeless] It doesn't matter whether you're the chosen warrior, a talented wizard, or someone who travelled back in time. The Regressor's Instruction Manual. "It doesn't matter if I'm trash." I’d do anything to survive.

10/10

What’s worse than a narcissist? A manipulative Narcissi

With the announcement of Earth’s end, awful creatures showed up. In the midst of an apocalypse that tramples on the sanctity of humans, the ‘Savior’ Park JungWoo’s tale to save the world beings.

7/10 interesting plot.

MC is convinced he’s killing to save the world, but I don't see the world being saved

You have been chosen as a player in the great game to select the next god’s successor, the Mission! Congratulations!” Seonghoon has suddenly fallen into another world to participate in a game to become a god. This other world that is akin to that of a game contains players who cooperate and also kill each other in cold blood…!! Seonghoon, a person without an ounce of talent, uses wicked and crude tricks to become an all-powerful player!

7/10

Manipulative narcissist again

Sungbin was ordinary, but after the death of his sister, he takes on the moniker of 'Neon Mask'. As Neon Mask, he becomes a psycho streamer and wages war on all gangs.

"A debt of blood must be paid back in blood."
"To avenge my sister, I will create an ocean of blood."

10/10 Ngl, he look hella fine-

Revenge thirsty/sociopath/some panels gives me chills

A boy who is bullied, and forsaken, is chosen by a sword that falls from the sky.

8/10 Interesting plot

Antisocial. Yeah. He wants to destroy the world alright

Really nice, the MC's trying to look for the person who killed him.

by threatening and torturing people :)

8/10 not Isekai or reincarnation, he literally came back to life.

Narcissist

The manga centers on homicide detective Hiroki Dan, the son of a former police superintendent general, and who seems to be on the fast track to career success. He maintains a hidden identity as a serial killer responsible for more than a hundred murders of people he deems beyond the reach of the law

10/10 The MC's a vigilante who kills bad people for fun.

Absolute . Psychopath/Sociopath/Antisocial.

I want an S-Rank skill too! I want it so badly, I could die for it!
[You have awakened an S-Rank skill.] [But it only works when you die.]
HUH!? WHAT’S THE POINT OF GETTING ONE IF I DIE !?

9/10

The MC is pretty chill, but also a sociopath. He's willing to kill himself 4000+ times to go back in time
to kill one person, and he did just that