The son of a samurai who lost his parents during the attack of English ships on a Japanese town is given the name Ryo and becomes the bodyguard of Ryoma Sakamoto, a man who has his own plan to fight for the country.
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.
