At the Beginning, He Was Invaded by the Bone King World and Saved Kaguya.

Chapter forty-eight and onwards are all hydrology, so don't read. Miss Kaguya—Jinju—Bone King (overlord)—Cute King Slime World (Chapter 33)—(See the catalog for details); (Which anime you like, please feel free to airborne!) The protagonist Lin Yi accidentally came to the world of Miss Kaguya, and faced a sudden dimensional rift. Let's see how Lin Yi, who has a system, can gallop through the world.