Psycho,Antagonist, and Unstable MC’s☠

The definition of ‘a product of your environment’ and who doesn’t love a good old kid that kills?
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Yuuichi, is a poor orphan high schooler making it through life with constant work and school and a tight solid friend group. This is until he was suddenly knocked out and wakes up with his friends in a strange room with a weird mascot saying that someone in the group was in major debt and signed them all up for this “game” to pay off their own while their friends gain debt.
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If you’re in the mood to just watch a psycho ‘justice’ killer just, do their thing, you found the right manga!!!
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This dude is betrayed and prosecuted for SAVING EVERYONE and comes back with revenge and madness to come
-(sort of in the beginning) but turns into

Classic turned sideways:hero is summoned, ‘comrades’ betray MC and kill him, start again from when he was first summoned and start his revenge. Side note, even the FL is a psycho that matches his brand of crazy perfectly and we stan
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He was suddenly summoned to another world one day. Monsters poured out, a huge disaster incoming. He’s potential is pretty low but he’s willing to use whatever means necessary and stick to the most powerful to survive.
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Our protagonist is a college student who enjoys playing as the evil-aligned faction Arachnea in her favorite real-time strategy game. One day, she finds herself in a world similar to the one in the game; additionally, her body is now that of a fourteen-year-old girl. While things are a bit different from how they were in the game, one element has remained the same: she is the leader of the Arachnea.
- bro This is so good

You got your basic isekai troupe ‘we will summon you to kill the demon king, be our hero and be graetful’ but, why should he be grateful? He was kidnapped, basically tortured with so called ‘training’ and to top it off annoying and incompetent comrades!
- He is the type of narcissist that believes that he is never ‘wrong’
-he was always evil but it’s fun to watch him slowly get worse and worse lol

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Bro this got me- had to IMMEDIATELY read the novel
If you ever want an unreliable narrator, RIGHT HERE! bro even I thought I was going crazy