Gin-iro no kami no Agito (2006)
It is 300 years into the future. Earth's environment had been devastated by mankind's own foolish plans and humankind is beleaguered by the sentient forests which they have awoken. The world balance is tipped when a young boy named Agito stumbles across a machine that glowed in a strange blue hue inside a forbidden sanctuary. The machine, which has preserved a beautiful girl named Tula from the past, is activated. Tula has a "mission" that had been entrusted to her by the past ...
- It has been 300 years since mankind's interence with the environment left Earth in ruins.now, the remnants of humanity are divided as never before.The crumbling reamains of vast cities stand in tenuous coexistence with encroaching forest, and humans live on both sides of this brewing conflict.Young Agito, the son of and aging hero,inadvertently sets in motion a series of catastrophic events when he wanders into a forbidden zone of the forest.He stumbles acrosso a cryogenic stasis tube containing Toola,a girl who has a vital mission entrusted to her from the past... It is an unsteady peace in an unnatural time.Only by searching their souls and examining the past will Agito and Toola understand the origin of all things and unite mankind with the forest.