Lovers of Japanese movies, please help me figure out what his movie is called!?

I watched a movie many yrs ago and it was a live action Japanese movie that was a fantasy, it almost reminded me of the Neverending story. There are many colorful crazy creatures in this movie. I believe they are demons of some sort but are invisible to certain people. I think it's called The ___ Clan but for the life of me I can't remember the name. I have been scouring the internet but obviously Japanese fantasy movies with Clan in the title are neverending. The believe the ____ part, the clan name starts with a Y. It's a crazy comic book style movie with incredibly wild looking characters, like a fable or a fairytale. Please help! Probably anime fans would know this movie, although it's not anime, it's in that genre.