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This is an online distribution of the prologue of the movie, illustrating the first day of the entire story. A world, forever beyond your expectations. In a dark, cramped, underground world of endless tunnels and shafts, people wear protective suits and live out their modest yet happy lives. The princess of the underground community, Patema, goes out exploring as always, inspired by her curiosity of the unknown depths of the world. Her favorite spot is the "danger zone," an area forbidden by the "rule" of the community. Despite being frequently chastised by her caretaker Jii, she cannot hold back her curiosity for the reason behind the rule, because no one would tell her what the "danger" was. When she approaches the hidden "secret," the story begins. (Source: translation of a synopsis from the nicovideo news)

Patema is a plucky young girl from an underground civilization boasting an incredible network of tunnels. Inspired by a friend that mysteriously went missing, she is often reprimanded due to her constant excursions of these tunnels due to her royal status. After she enters what is known as the "forbidden zone," she accidentally falls into a giant bottomless pit after being startled by a strange creature. Finding herself on the surface, a world literally turned upside down, she begins falling towards the sky only to be saved by Age, a discontented student of the totalitarian nation known as Aiga. The people of Aiga are taught to believe that "Inverts," like Patema, are sinners that will be "swallowed by the sky," but Age has resisted this propaganda and decides to protect his new friend. A chance meeting between two curious teenagers leads to an exploration of two unique worlds as they begin working together to unveil the secrets of their origins in Sakasama no Patema, a heart-warming film about overcoming differences in order to coexist. [Written by MAL Rewrite] The film was first premiered at France's Annecy, the world's largest animation festival, on June 13, 2013. Screening in Japanese theaters began on November 9, 2013.

Due to childhood circumstances, first-year high school student Saki Miyanaga hates anything related to mahjong. When she does play the game, she keeps a low profile to avoid standing out. One day, her friend Kyoutarou Suga drags her along to the school's mahjong club. There, she meets Nodoka Haramura, the champion of the previous year's national middle school mahjong championship, and Yuuki Kataoka, a fellow club member. As the club play a few rounds, Saki attempts to hide her talent. However, the club president, Hisa Takei, notices Saki's unusual playstyle. Realizing her potential, she puts Saki's real ability to the test—proving her to be more talented than expected. This revelation damages Nodoka's pride, and their relationship gets off to a rocky start. Saki ends up joining the club, and after clearing up the misunderstandings between her and Nodoka, friendship blooms between them. As Saki slowly warms up to mahjong once again, she and the rest of her club only have one goal—to win nationals! [Written by MAL Rewrite]

Unaired episode 13 included with the fifth Blu-ray and DVD volume.