A failed DNA experiment with plants has changed the world forever. Having demolished the Moon, the intelligent and aggressive plant life form has spread to the Earth and destroyed the human civilization. The few humans that remain struggle to survive, while maintaining an uneasy truce with the restless forest. One day, a villager named Agito stumbles across a stasis unit hidden deep in the forest and awakens a very cute girl from the past. Having slept for the past 300 years, Toola steps into a very different and strange world. The neighbouring high-tech village of Laguna is still locked in a bitter war with the forest and when they become aware of Toola, they realize that she is the key to activating her father's final and ultimate weapon of humanity — a weapon designed to totally destroy the forest. When Toola is taken by the warriors of Laguna, Agito makes a pact with the forest to gain the strength and incredible powers to not only save her, but to stop the weapon from destroying both the forest and his village.