Bai Long or Asran? Either way, it's the same person who manages to return back to his own home. Home that he had been longing for since the past millennia.

Yet the home he expected had changed to the unexpected. Monsters and superhumans ran around the whole world changing the home he knew into something else.

Everything happens all because of these interdimensional gates known as portal. It brought along a whole new ball game for Asran who had returned to being the weakest.

For the sake of protecting his mother from dangers of the world that spans from small-time gangsters to monstrous creatures, Asran has no choice but to cultivate himself from the beginning.

Since...

He's the Sole Cultivator of Earth.