Reincarnated in the world of My Hero Academia with the quirk "Lucifer".
A heads up since despite the concept people are still asking a lot.
The main character has a quirk turning him into the devil/Lucifer so obviously he isn't going to be a good guy.
He is a selfish manipulative scumbag. I would term him as an anti-villain. The mirror to an anti-hero. Where an anti-hero does heroic work through non-heroic means an anti-villain would strive for villainous goals by using heroic means.
Though I personally don't consider this a harem fic the main character definitely isn't monogamous. If you don't want to read about a main character that happily sleeps with multiple women this isn't the fic for you.
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