Plot 1: The integration of modern technology and the world of fantasy and magic
Plot 2: Combination of technology and magic to explore future civilization
Ants don't know how big the world is. Only when you have the courage to explore can you know the majesty of the world.
Plot 3: Ancient times, imperial examination
Plot 4: Advanced world of immortal cultivation, reaching heaven and becoming a god
... Tentative
Concept: An unknown author