The Most Brilliant Civilization

This is a world with infinite possibilities, connecting all heavens and realms. Strong men from various world civilizations came here through time and space tunnels, bringing with them civilizations of different styles. Immortal cultivation, magic, and technology coexisted here. Immortal kings, great magisters, and scientists from all walks of life collided here to create bright sparks. The hilarious showdown between Luffy and Naruto; Nezha's battle with the Demon of the Abyss, wonderful stories from all planes will continue in this vast continent! And our protagonist is just a helpless university teacher. How will he shine in this splendid civilization?