Kuma to Karasu

I want to continue this journey together with you. This is the story of a lonely bear and an outcast crow, and their journey to find their "irreplaceable companion."

Somewhere in Japan is a black bear who lives deep in the forest. In his childhood, he was separated from his family and has never met another bear. The bear is alone, until he meets a city-raised crow... The two decide to search for the bear's companions that he's never met before. Passing through mountains, forests, grasslands, volcanoes, and lakes, meeting deer, owls, herons, and boars, can the two find their "irreplaceable companion?" What about the existence of Yatagarasu, the God who grants only one wish?

(Source: Bungeishunju, translated)