I Was Once a True Immortal

“I was born an immortal, not an ant. I will stand above the highest heavens and look down upon the abyss where demons gather. With the Demon-Subduing Seal in my hand, standing on the shoulders of gods, I will cow the lowly demon gods!”

P.S. A genius-focused story, no System.

P.S. The protagonist is decisive and ruthless. No tormenting the protagonist, no saintly behavior, and no filler. Add it to your collection and support the book!