I Just Reached the Nascent Soul Stage, but Got Pulled into a Dungeon

[Unlimited worlds + lighthearted + humorous + invincible + hilarious + no female lead + immortal cultivation + System] After just three hundred and fifty years, he had reached the Nascent Soul stage. He was ready to go into seclusion and break through to the next level so he could become an immortal as soon as possible. But instead, he found himself thrown into all kinds of scenarios. Fortunately, the System arrived just in time, freeing him from the binds of the Main God and bringing him a wealth of benefits. The Main God's goal was simple: train him to become a higher-level pawn and make him fight on an even more brutal battlefield, all to obtain the resources hidden in the depths of the universe. Any plot from a TV series, movie, or anime he knew by heart was one he would get to experience firsthand.