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.

When his internet business fails and leaves him in heavy debt, Ryota takes a position on a tuna fishing boat set to sail on New Year's Day 2000. In the meantime, he lives indifferently.

A young Japanese boy's life is changed when his sister returns to the small island, full of eccentric characters, where he lives.

A brother and sister leave the big city to live with their veterinarian father when their mother is hospitalized. As they are adjusting to their new life filled with natural beauty, they adopt an abandoned puppy. When it is discovered that the puppy is actually a wolf, they choose to return the baby wolf to its mother in the forest rather than let it live a life in captivity.

Hama-chan takes a vacation to go fishing in Akita despite warnings from Su-san as his company faces a restructuring process.