In 2008, the Japanese government began hunting people who identify as otaku in an effort to protect the country's culture. In just one week, the enforcement agency known as the SSC captured almost every otaku by force and confiscated their memorabilia. One passionate man calling himself Otaku Hero refuses to allow this agency to do as they please: he raises a resistance army made up of other displaced geeks who band together to help defend their culture. Three years later, the fires of rebellion wane as all hope seems lost for otakus. Spurred on by his ally—the magical girl Anarchy—Otaku Hero commands the resistance in an effort to reunite Anarchy with the other two other magical girls: Blue and Pink. By combining the power of this trio, the resistance may be able to defeat the SSC and save otaku culture for everyone.

Though Sayaka Miki's wish was fulfilled, the unforeseen consequences that came with it overwhelm her, causing her soul gem to become tainted as she succumbs to despair and eventually loses her humanity. Homura Akemi reveals to Kyouko Sakura and Madoka Kaname the ultimate fate of magical girls: once their soul gem becomes tainted, it transforms into a Grief Seed, and they are reborn as witches—a truth Homura learned only through repeating history countless times in a bid to prevent Madoka's tragedy. Kyuubey only compounds their despair when he confesses his true intentions: to harness the energy created from magical girls and use it to prolong the life of the universe. As the threat of Walpurgisnacht, a powerful witch, looms overhead, Homura once again vows to protect Madoka and the world from a grim fate. Caught between honoring Homura's wish and saving the world, which one will Madoka choose in the end? Mahou Shoujo Madoka★Magica Movie 2: Eien no Monogatari is a story of inescapable destiny, and an unlikely hero who could change it all.

Several months have passed since the Jewel Seed incident, and Nanoha Takamachi is getting ready to welcome Fate Testarossa back from her trial with the Administrative Bureau. Having received conditional clemency for her role in preventing the crisis, Fate has been allowed to attend school with Nanoha. However, before the two girls can settle into their daily lives together, a group of dark mages suddenly descend upon them. Overpowered by their unknown assailants, Nanoha and Fate have their mana absorbed by an ominous grimoire, and both Raising Heart and Bardiche are damaged in the process. The ones behind this ambush are known as the Wolkenritter, and its four members—Vita, Signum, Shamal, and the familiar Zafila—were summoned by the Book of Darkness to carry out its malignant bidding. The book's current owner is the young girl Hayate Yagami, oblivious to its true nature while the Wolkenritter, charging its power with the forcibly stolen mana, is duty-bound to seek the tome's completion. Left drained and weaponless, Nanoha and Fate must race against time to recover their strength and confront the Wolkenritter, with the aim of preventing the quartet from finishing the Book of Darkness and unleashing its devastating magic upon the world.

After solving the incident of the scattered Jewel Seeds, Nanoha Takamachi happily returns to her everyday life, though now with added magic practice in the morning. Exchanging video messages with Fate Testarossa and the crew of the Arthra, Nanoha eagerly awaits the chance to speak with them in person again. But while studying in her room one day, Raising Heart suddenly calls out to Nanoha and warns her of an incoming attack! The attacker is a young girl named Vita, who calls herself a Belka Knight. She proves her strength by using an intelligent device with a mysterious cartridge system to quickly overwhelm Nanoha. Luckily, the Space-Time Administration Bureau is able to step in before she is completely crushed. Vita and her fellow knights Shamal, Signum, and Zafila are on a mission to steal magical power from mages in order to complete the Book of Darkness, one of the Lost Logia. For what sinister purpose are the knights after this Book of Darkness?