Was there a novel where the male protagonist found a few doors in his rented house, and these doors could lead to different worlds? One of the doors that was left behind seemed to belong to a foreigner.

In one of the worlds, he could get some fish, and he would bring it back to the " real world " to sell it. In another world, which era was Rome? In another world, there seemed to be skeletons, and the door seemed to be made by some organization. That organization regularly organized events like auctions, and the organization's opposition was the Space Administration? I don't remember anything else. Please help me if you know.

Answer 1

"My Door to Ten Thousand Worlds" was a novel about the infinite universe. It told the story of an ordinary person who found a door that could pass through ten thousand worlds in a rented house. Each door could lead to a different world, and the male protagonist experienced many adventures and challenges in different worlds. I hope you like my recommendation. Muah ~