Mushishi, Casshern Sins Recommendations
It's not about the action, it's about the journey and the discovery of two amazingly created worlds. They both are pure piece of art!
Same special ambiance filled with tranquility.
Same ambiance, both have a really artistic animation and both are speaking in background about life and death.
exploration of the world, the protagonist has a stumble with the world (cassher the robots that hate him), (ginko is an attractor of mushis), have a past that follows them.
Both shows create a unique melancholy, quiet, mysterious atmosphere. They also have beautiful music and scenery, and are episodic in nature-- the point is the journey, not the destination.