Nameless King
Once all people received Souls and incredible powers. Some were lucky enough to obtain the Soul of an ancient and powerful creature, but fate was not favorable to all. The world began to change, and creatures evolved. But, it was not the beginning of a new era. It was the end. A couple of months later, a dark mist appeared and destroyed the world. It was a dictate of destiny from which no one could escape. Wain Norheim was the world's best assassin and the only one who didn't get a soul. However, he was destined to gain the power to confront fate. Escaping through a portal into another world, he unknowingly began the apocalypse. Even the world failed to expel him.
The Hero
On his first day, when Wain came to this world through the portal fleeing from the black mist, he immediately encountered the guardian of this dimension.
With the help of his world's residual essence, Wain could defeat a seemingly invincible foe. However, his difficulties did not end there. He faced a battle with this world, or rather with its essence.
The world couldn't fight like Wain. It could condense its energy into the essence and unleash its power on Wain. Otherwise, the world would have been destroyed, for, unlike matter, energy was not material.
Thanks to the remnants of his world's power and the essence of his soul, Wain could overpower the world's essence. It could not be called a real fight. In that case, this space would no longer exist, nor would the planet.