I Am a King in Another World

After traveling to another world, Li Mufeng discovered that he could travel between two worlds, and he also had the golden finger that is necessary for travellers. However, this thing may be a defective product. It was soaked in water when it was manufactured and it is not very easy to use. However, with the protagonist of the whole world behind him, he can still recreate the miracle of industrial civilization. What kind of arrogance is it for a cat-eared girl and an elf to go to school together in JK in the city? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.