MMO RPG IN MULTIVERSE ANIME

In the beginning, there was only darkness. No sky, no ground, and no time. Only a single consciousness floating in the void... TN.
After dying on Earth, TN awakens in a mysterious place where a powerful entity offers him a second chance: to be reborn in a world where millions of people fight to survive, evolve, and become the chosen human.
Before starting his new life, he must choose an element and the region where he will begin. But something strange happens during his choice... something even he cannot explain.
When he opens his eyes, he finds himself in a medieval city ruled by warriors who control the power of darkness. Everyone there has levels, power, and mentors who train them.
Everyone... except him.
With only Level 1, TN must survive in a world where the weak disappear quickly. But from the shadows, someone seems to be watching him... and protecting him.
Who is TN really?
What element did he choose?
And why does he not seem to belong to this world?
His new life has just begun.