Martial Arts Longevity: I Can Travel Across Myriad Worlds

In a martial world, strength is supreme. Commoners are treated like blades of grass, while the strong openly plunder everything. Zhuang Bufan, a young man from Blue Star, is reborn here with all his memories intact, becoming a low-level martial artist. At first, he survives cautiously and keeps a low profile. Later, he discovers that he can travel through countless worlds, and his conduct gradually grows more unrestrained. What? You say your Body Tempering has reached the ninth level, making you impervious to blades and spears? How about a look at this anti-materiel rifle from a technological world! Hmm? You say your demonic cultivation has reached perfection and no one under heaven can stop you? Heh, this Ghost King Coffin from a strange world happens to be short of a ghost-refining material like you! Oh? Your family possesses powerful exotic beasts, each one capable of matching an entire army? Very nice, very nice. As it happens, I keep several divine beasts from the primordial wilderness. They have been eager to stretch their limbs lately. Or perhaps I could open a battleship from a sci-fi world and let you see what a high-energy particle cannon is!