Horror Game Reviewer

Any Novels with No Harem, Maybe Even No Female Lead, Where the Protagonist Is Powerful but Not Invincible?

Please recommend novels where both the protagonists and supporting characters are dazzling and distinctive. The protagonist should be powerful but not invincible, with a functioning IQ. The companions should also be strong and impressive, and they can even be stronger than the protagonist. I don't need an overwhelmingly powerful protagonist aura. Absolutely no harems and no female characters who fawn over men. A female lead is not necessary.