This Star Came from the Wasteland

Su Nan had a dream in which he fought various monsters in a wasteland.

Just as he thought it was only a dream, he transmigrated to the wasteland world from his dream.

Thus, Su Nan shuttled constantly between the two worlds, using the culture and abilities of each to continually improve himself.

Many years later...

The person standing before you now is Su Nan, Blue Star's greatest artist, the wasteland's strongest superpowered being, and the dream lover of countless young women.

(Note: The author does not know much about firearms, so all the weapons appearing in the wasteland world are fictional. The first program the protagonist participates in in the real world is a dating reality show)