Sociopaths, badasses, psychopaths, and revenge!

A little bit on the pervy side, but all right. Old assassin gets reincarnates into a medieval ish world as the son of an assassin Noble family, and a goddess tells him to kill the hero

Not rlly sociopath or psychopath, pretty badass. I think it's going down the romance path, which is bad because it would be better without romance. Even the comments agree with me

Man gonna kill yall

Finished manga. A boy gets transported to another world with his classmates and gets betrayed. Revenge time!

Only ch. 0, and he doesn't actually kill heros, a bit misleading. Not high on my list

Not a sociopath or psychopath and the revenge is not likely to happen, he's just badass. Not rlly one of my favorites, as I don't like it when the mc gets distracted by romance. Would be better without the chick

Very similar to solo leveling, except not as good. MC isn't a psychopath or sociopath, y is this on the list?

A harem story, VERY complicated, PLOT TWISTS GALORE. Yes, I think there will be romance, but none of the characters are falling yet

I guess he's badass, but he doesn't kill enough :( also romance included, trapped in video game isekai type

Shounen ai, very cute between a tsundere guy who always follows the rules and a guy who goes down the dark path