Otherworldly Smuggler

In another world, a genius alchemist is preparing to refine a space ring that will shock the world, weep ghosts and gods, and can store living things. On Earth, on a remote grassland in China, the protagonist is sleeping peacefully at home. When he wakes up, he finds a barrier covering one-third of an acre of his home, and a space gate brings an alien world that is completely different from the Earth's ecology to him. Being able to freely travel between other worlds and the earth, the protagonist's mentality is always a little different from other time travellers.