Origin: Spirits of the Past
The rebirth of the past from the ashes of the future … A young boy named Agito enters a forbidden sanctuary where a glowing machine resides. This machine preserves a young girl named Toola, who has a mission entrusted by her from the past. Three-hundred years into the future, the Earth's environment has been ruined by the interference of mankind, and in between the 300 years, the forest has come to life and is at constant war with man. It is an unsteady peace in an unnatural time. Only by searching their souls and examining the past will Toola & Agito realize the origin of all things and unite mankind with the forest.
Official Site: www.funimation.com/shows/origin-spirits-of-the-past