On the day before summer vacation, Ichika discovered an old mirror in an old school building. From within it, the mysterious Manatsu looked out and offered to trade favors: if Ichika will do her "homework" (experience the power of the spiritual life forces and write about her feelings) then she will return the charm that Ichika has lost. As Ichika struggles to absorb the raw power of nature, those who watch from the other side of the mirror eagerly await her decision at the end of trials. Can a 14 year old take on the sins of the world and mend the rifts between nature and humanity? This anime is based on a one-shot tankoubon by gimik and Keito Koume. It's published in Japan by Dengeki Comics.