Summary: 15 year old Louis has been having a reaccuring dream of a silver-haired girl with one blue and one green eye. One day, he feels compelled to go into the forest and encounters the girl who was collapsed by the base of a willow tree. Upon reaching her, she attacks him, therefore completed her synchronizing ritual. Now bound to Louis, the girl, known as Cecilia, must acquire his help to complete her goal in the human world. The two then set out on an adventure to uncover what is drawing her back.
[Title is also tentative until I can think of a better one]