I get stronger by sunbathing, just like Superman.

He is the Earthling version of the 'Child of Krypton'.
Earth is on the verge of destruction. Lei Ming, one of the sparks of human civilization, is sent on a spaceship to another star system in search of a new habitable planet. Unexpectedly, he ends up on a planet that is very similar to Earth...
The planet's sun granted him immense physical strength, awakening superhuman abilities such as heat vision, flight, a biofield, and freezing breath…
As time went by, he grew stronger and stronger, and the older he got, the slower he aged.
Gradually, he discovered that the world was not as simple as it seemed on the surface, and supernatural forces were slowly emerging from the shadows…
The demon hunter brothers driving a black Chevrolet, the resurrection of wizards from a thousand years ago, descendants of a prehistoric civilization born in the first solar age, and parasitic evil gods from another dimension.
Until one day… the real Superman appeared before his eyes…
Thunder was forced to become the strongest being in this universe.
(Friendly reminder: This is not a story about a homeless person killing indiscriminately; there is no harem element. Please read the preface carefully before reading.)