In an alternate world with steampunk overtones, Keith is a former successful novelist and now hikikomori after having sunk into an abyss of depression and creative crisis. Thanks to the loving commitment of his editor, Keith manages to find the light after coming into contact with an image that is said to represent Willowing, a phantom natural oasis that is said to be the source of human civilization.

In an alternative Middle Ages, where legends are reality, the young Ezra decides to go into the Forest to find the big wolf protagonist of a story that has always terrified the children of his village. However, the Forest is treacherous, and Ezra falls victim to a trap set by a hunter. Aidan will save him, and from there their coexistence will begin. But their peace will be interrupted by the hunter ... Will Ezra be able to find the truth hidden in the depths of the wolf's eyes?