I need help

I read a story years ago about a dream eater/broker or something. The man has long white hair that he wears in a ponytail. He also has a patch over an eye that can reveal something? The story begins with him saving a human girl from fully dying in a river. He has her become his apprentice. Some other side characters are brother/sister cranes, a fox man, a spider lady and a horse boy. They go around and you see him either sell/buy/ or eat dreams. There is a mystery of what happened to his village and if she is truly dead or not. The art is very whimsy/water color looking. The girl can also move about the mortal world I believe. Thanks!