Insane Protagonist basically sums it up. Please have the writing be decent. Also, no Renegade Immortal, Reverend Insanity or any of those dungeon books. I've read those. Thanks!
Warlock of the Magus World, is not really insane but will do quite a lot of stuff for power...... i really like the ending of twilight zone arc EDIT: aaaand the MC of Reverend Insanity is not insane... but figured u might enjoy wmw since the mc is somewhat similar
I’m Sorry For Being Born In This World! if you can find the korean novel that is, MC is an Sociopath that transmigrated to another world
Insane as in 'Oh, carrying a bomb through a lava-filled minefield is a very good idea' Or 'Let's see... how can i maximise their pain ? I know! Let's tie them to rabid sheep and let them loose in a minefield!' Or 'That pink elephant is bothering me, I should really call in some artillery on it' Spoiler Oh, but how can you possibly believe that ? Where's your proof ? He only set fire to his own defences to counter it. Oh and it was only one district.
Scum of cultivation world Not particularly insane, but on a scale of evilness if fang yuan is 9 here mc is 9.5. Not much smarter but just evil. I'm actually searching for the same types, these are pretty rates gems, it's been hard finding them
I guess Hakomari kinda counts: Spoiler Because in the last volume Hoshino goes pretty insane. I mean, he's literally reliving the same day killing as many people as he can (starting off with friends and eventually family), in a constant loop of kill (gruesomely)-> kill himself-> 'revive'->, where if they're killed, they stay dead. All this just so he could see Maria again. But if you want the character to be insane the whole series this isn't for you. It's pretty good if you want a bit darker series to read.
Spoiler Very true. It's really hard to have a bad reputation, people just blame you when you were just trying to stop the fire that the mercenaries made from spreading. Fires are unpredictable tho, so you never if a wild fire just randomly starts somewhere or a lunatic decides to take a city down with him.