Origin: Spirits of the Past

Origin Spirits of the Past Japanese , romaji Giniro no kami no Agito ? , lit. SilverHaired Agito is a 2006 Japanese animated science fiction film directed by Keiichi Sugiyama and produced by Gonzo. It premiered in Japan on January 7, 2006, and premiered in the United States on September 24, 2006 at the Fantastic Fest film festival in Austin, Texas.

One day, Agito and Cain race each other to see who can get to the water hole at the bottom of the city first. By disturbing the sanctity of the water hole and angering the Druids, the two boys are separated. After stumbling upon a large machine with cryogenic pods, Agito accidentally revives Toola, a young girl who has been asleep for the past 300 years, and brings her to Neutral City. The Forest is angered by Toolas awakening, since she carries a Rabana portable personal electronic device, worn as a necklace, that can be used for communication and a variety of other tasks. The Forest fears that she will fall into the hands of Shunack, a soldier of Ragna and also a person from the past who was awakened from sleep, and that he will use her Raban to locate E.S.T.O.C., an environmental defragmentation system with the ability to wipe out the Forest and restore human control over the world.Shunack finds out about Toola and arrives into Neutral City with his army to persuade her to join him. The Forest sends a giant creature to stop the meeting, but Shunack destroys it and reveals that he has been enhancedhe allowed himself to be genetically altered by the Forest to become stronger by using the power of the trees. Convinced that finding E.S.T.O.C. is the only way to restore the Earth back to the world which she once knew, Toola joins Shunack in his quest despite Agitos plea not to go. Agito consults his father Agashi, the founder of Neutral City who, as a result of being enhanced and having overused his powers, has turned almost completely into a tree. With few days left before becoming a tree completely, Agashi encourages his son to save the Forest from Shunacks plan, since destroying the trees would mean the destruction of mankind. Agito journeys to the Forest and allows himself to be enhanced, his hair turning silver as a result. ........

Source: Wikipedia