 If you liked
Kage no Jitsuryokusha ni Naritakute!
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 ...then you might like
Ore wa Seikan Kokka no Akutoku Ryoushu!
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Very similar! Both are isekais about a guy who wants to get stronger/powerful by any means possible and is completely misunderstood by the rest of the cast. Shadow wants to be edgy and cool while Liam wants to be edgy and evil. Both of the protagonists are stupid, but always manage to win somehow. If you love one, you'll love the other!