In the future, the oceans have risen to flood all the continents due to humanity's negligence of the environment. Only a few bits of land have been spared, and one of those is the city-island where Elfie lives with her grandfather. One day, due to an underwater incident, she discovers that she can breathe underwater. Her grandfather reveals that in truth she is one of the mythical sea-people. Using the city folk's xenophobia, local politicians spark a war with this hidden people to distract people from their current resource problems, and Elfie is caught in the middle of it.

Peter the fairy, who is head of Placid forest, loves to play with his animal friends. One day "Man" threatens to destroy their homes by cutting down the trees. They decide to peacefully protest but the humans won't listen. With their lives at stake, the animals and Peter carry out their final operation.

Chizuru is a blind girl who lives in a poor rural orphanage, Hope House. In order to help her and get the winning prize of 100,000 dollars, Tiger Mask = Naoto Date turns his back on Baba and Inoki, who are indebted to him, and participates in the big event "Masked World League" set up by Tiger's Den. While hurt both physically and mentally, he fights against the monster wrestlers sent out by the Tiger's Den.

Nello Tarth is a poor but happy orphan who lives with his grandfather Jehan and his dog Patrasche in a little village near Antwerp. He spends his days drawing and delivering milk. When Nello decides to enter an art contest, he experiences firsthand the ignorance and cruelty of the villagers of the town. Nonetheless, with the help of his beloved dog, Nello perseveres to achieve his dream.