Spell: The Strongest Tyrant

Reborn into a cursed world, fate awakens the ability to stand in for a world that does not exist in this world.

In this way, a heavenly tyrant and substitute messenger who was cursed from birth and born with absolutely zero curse power was born!

What kind of sparks will the ultimate physical body and the ultimate mental power collide with in this cursed world?

(PS: The protagonist is half-indigenous.)