The concept is based on a girl escaping from the traditional Tokyo area called Yoshiwara and finding herself in a beautiful forest. She is guided by a 'Unryū' (cloud dragon), who calls upon her to leave the haunting demons of her past life and forge onto a future of hope.
The setting was scouted because it depicts a pathway both in the form of a river and dirt trail surrounded by beautiful trees. The scenery selected needed to carry the mood of the story from the first shot to the last. Real Kimono, custom calligraphy, and music was used to bring the concept to life and show the intimate interaction between human and spirit.