The Last War of the Heavenliods and Akutoliods

Akuto, the main source of energy is running low and the Heavens, a world of islands, hidden beyond time, floating above ours, has united against the Magical Kingdom whom uses the most energy. To save both the Magical Kingdom and the Heavens and restore the flow of akuto, the Magical King Munto must follow a vision and find the girl Yumemi in the lower world. Yumemi herself is just a normal girl except that she is the only one who can see the islands of the Heavens floating above. When Munto appears before her she starts thinking about hers and others responsibility to the world.

Two years have passed since the catastrophic event known as the "Continent's Dropping" from the first OAV episode. Yumemi still has not forgotten her ability to see the world above, but now she's in the last years of middle school, tests and real life take over. Unknown to the people of the world, Akuto the world still thrives, but the war rages on. In need of help, Gaz, sends Munto down into Earth once more to find the "Girl of Destiny" in order to save Heaven from its ultimately demise. Yumemi must once confront the only world she sees, and not even her friends Ichiko and Suzune can help her.