In the 24th century on the planet Aqua, three girls—Akari Mizunashi, Alice Carroll, and Aika S. Granzchesta—continue to work hard toward achieving their goal of becoming Prima Undines: professional tour guide gondoliers. Luckily, the girls have the guidance of the three best Prima Undines in Neo-Venezia—Alicia Florence, Athena Glory, and Akira E. Ferrari—who are known as the "Water Fairies" in honor of their skill. With their help, the young apprentices train hard and work to overcome any situations that they find themselves in. Aria The Origination follows the hardships and daily lives of these three young girls, who are doing their best to improve as tour gondoliers in Neo-Venezia, a terraformed replica of Venice.

The students return as school is back in session for the second semester. Following their exploits on the island during summer vacation, Class 3-E continues to sharpen their blades with their sights set on their teacher, the slippery Koro-sensei. They have more to worry about than just their teacher, however, as enemy assassins, both old and new, are out for the increased bounty on the octopus' head. Moreover, their rivals in Class A, as well as Kunugigaoka Junior High's fearsome principal, stand to block Class E from achieving academic excellence. With all of these obstacles opposing them, the group must continue to work together in order to overcome their foes and accomplish their goal of successfully assassinating their teacher. [Written by MAL Rewrite]

It is not strange that the Demon Lord's forces fear the Crimson Demons, the clan from which Megumin and Yunyun originate. Even if the Demon Lord's generals attack their village, the Crimson Demons can just easily brush them off with their supreme mastery of advanced and overpowered magic.

When Yunyun receives a seemingly serious letter regarding a potential disaster coming to her hometown, she immediately informs Kazuma Satou and the rest of his party. After a series of wacky misunderstandings, it turns out to be a mere prank by her fellow demon who wants to be an author. Even so, Megumin becomes worried about her family and sets out toward the Crimson Demons' village with the gang.

There, Kazuma and the others decide to sightsee the wonders of Megumin's birthplace. However, they soon come to realize that the nonsense threat they received might have been more than just a joke.

In November 1998, a double homicide occurs at the newly constructed Ogawa apartment complex in the heart of Mifune City. The murderer, Tomoe Enjou, has fled in a panic. To his astonishment, he is not pursued by the police and news of the incident has not been reported through media outlets. After Shiki Ryougi defends Tomoe from a group of thugs, she allows him to use her residence as a hideout. However, a few days later, Tomoe is shaken to discover that his mother is alive, even though he is convinced that he killed her.

Coincidentally, Mikiya Kokutou is investigating a tip that his associate Touko Aozaki receives regarding the murder at the unique apartment complex. As he uncovers more information about the incident, Mikiya takes a particular interest in Tomoe. Deciding to investigate him further, Mikiya soon discovers the disturbing truth of the foreboding Ogawa complex.

The fifth installment of the Kara no Kyoukai film series, Mujun Rasen combines an intricately constructed mystery with established themes and characters to produce a dark, thought-provoking story.

[Written by MAL Rewrite]