Made a quick concept art-piece of my kitsune OC Fate's home location:

There's a lot of mystery raveled with the mysterious, small wooden doorframe made of three wooden branches. At the daytime, a living soul would stumble upon them anywhere in the world. Secluded places like an abandoned alley, ancient ruins, vacant buildings, sewers, tunnels, forests. Especially one in an alleyway located in old Camden.

But at night, they actually serve as one of the many portals to Fate's realm. Fate, being a spiritual kitsune, has the power to open many portals around the world with ease to carry out with his duty to set living souls on the paths they choose in their mortal lives. His home is also where he runs a fortune-telling business called "Guarida Del Destino" (Den of Fate in Spanish) -as one would see a neon sign of said name flashing above the doorway- and would offer a new path for lucky souls who have caught a glimpse of him.

The front door may look small, but on the inside, Fate's home world is large and very spacious. The portal can warp space and time, so Fate and living souls wouldn't have any trouble trying to enter the doorframe, not matter what size they are.

Fate is very protective and secretive of his realm and works to minimize the exposure of his world to all living souls, with lucky ones being the exception, which is why the doorframe is built to be small like a fox's den (In stereotypical basis).