Kon no Ki Konoha

コンノキコノハ

As a child, a girl named Akino wanders into a mountain forest and finds a strange blue tree, where she meets a blue-haired boy called Konoha. He is a spirit who lives inside the tree and can only step outside during autumn. Year after year Akino returns to see him, and the two test whether a bond between a human and a spirit who can meet only one season at a time can really hold.