The Strongest Side Character Refuses the Throne

I died once—and woke up as something the world was never meant to contain. In a realm where magic defines status and nobles rule by blood, I reincarnated with power beyond gods, beyond laws, beyond reason. A strength capable of erasing worlds with a thought. So I chose to disappear. While heroes rise and villains awaken, I live as a nameless commoner and enroll in a noble-only academy where commoners are meant to fail. Beside me stands the true protagonist—a gifted boy destined to shake the world. I do not seek glory. I do not seek a throne. I only watch from the shadows… and erase anything that threatens the story before it begins. This is not the tale of a hero. It is the story of the strongest being in existence—who chose to be a side character.