In the Fifth Year of the Keicho era, the Tokugawa clan sought to solidify their control of Japan. Hidetada Tokugawa has come to the doorsteps of Ueda Castle with the intentions of having the Sanada clan open its doors to him. But the Sanada and their retainers have other plans...

This full 3DCG digital animation has story takes place in the far future after a pillar of huge fog appeared suddenly in the South Pole. This pillar, known as Jam, is actually a passage for an earth invasion. In order to oppose the threat, the United Nations established an earth defense mechanism. Fukai Zero is a hero registered to the main force of earth defense and the special 5th flight squadron. His reconnaissance plane, Yukikaze (windblown snow) is the best tactical reconnaissance plane. His job is to collect battle information return safely to the base with the information. But one day when he about to finish his duty, an unidentified machine attacked him...

The story centers on Nayu, a middle school girl who shocks her schoolmates on the first day of school by wearing black lace panties. She likes this kind of underwear, and she tries to "spread the word on the merits of [these kinds of] underwear" via an underwear club with her schoolmates, who are worried about their bodies' development and which underwear to choose.

1532. Esteban, age 12 is a foundling from Barcelona, with a mysterious power of ordering the Sun to appear, for which he is called "Child of the Sun." Upon the death of his adoptive father, Esteban learns he was rescued as a baby from a sinking ship in the ocean. The mysterious medallion that Esteban wears since ever has a trace somewhere in the New World, probably coming from the Mysterious Cities of Gold. Esteban leaves Spain to find his parents and find out who he is. On the way he meets Zia, an Inca girl who was kidnapped from her people years back and has exactly the same medallion as him. Later on, they are joined by Tao, a young Galapagos robinson, the last descendant of the Empire of Heva, an Empire said to have built the Cities of Gold. Following Coyolite, the shining star represented on their medallions, the three children travel through the unexplored New World, searching for the Cities of Gold, believing that this way is leading them to their lost parents.