What was the world like countless cycles ago? The myriad Great Dao revered their ancestors above all. Humans, demons, monsters, beasts... countless races stood side by side, and prodigies were too numerous to count. “I... I only just graduated from high school. Invincible? I can’t do that.”
The horns of the immortal war sounded. Atop the towering immortal wall, a white-haired man clad in golden armor gazed into the distance. He clasped his hands toward the vast allied forces of the immortal realms. His body grew ever more transparent. When he opened his eyes again, he had returned to a world from before the ancient past. “I will defend this world for you. I am the Profound King, invincible in this age.”
So far, it's well written and interesting.
Well written, keep up the good work