I remember the MC is a trash person in the past, he is strong but has a bad attitude, and then he got reincarnated/return back in time but instead of being a Hunter he was forced to be a cleaner by a system and in there he saw the bad environment of Cleaners and then he became a head of the cleaners yet he is as strong as a Hunter, maybe even stronger because as he gets Cleaner Achievements his old status and skills gets unlocked as well
I remember the MC is a trash person in the past, he is strong but has a bad attitude, and then he got reincarnated/return back in time but instead of being a Hunter he was forced to be a cleaner by a system and in there he saw the bad environment of Cleaners and then he became a head of the cleaners yet he is as strong as a Hunter, maybe even stronger because as he gets Cleaner Achievements his old status and skills gets unlocked as well