Rumor has it that if a young girl strikes a bargain with a white fairy, it will grant any wish her heart desires. However, in exchange, she will become a magical girl and must put her life on the line to slay fearsome and ferocious witches. Iroha Tamaki, a kind-hearted middle schooler from Takarazaki City, is living proof that these rumors are true. Armed with a magical crossbow and the ability to heal injuries, Iroha seeks out the labyrinths where witches hide and defeats them before they can prey on humans. Yet Iroha has no memory of her wish, and even Kyuubey, the white fairy himself, seems to have no idea what Iroha requested of him. One day, Iroha hears rumors of a city where "magical girls can be saved," and finds herself on a sunset train to Kamihama City. Unfortunately, she discovers that the witches in Kamihama are far more powerful than usual. After veteran magical girl Yachiyo Nanami is forced to save her, Iroha vows to never return. But when a chance encounter with a tiny Kyuubey seems to trigger distant memories, Iroha is compelled to investigate the mysterious city despite the danger. [Written by MAL Rewrite]

It has been 50 years since mankind began its migration to the terraformed Mars, where they live in comfort due to advancements in AI. Carole lives in the metropolis of Alba City, working part-time by day and playing keyboard by night. Tuesday has run away from her home in Hershell City to escape the grip of her wealthy family, and instead hopes to pursue music with her acoustic guitar. After a fateful encounter, the two decide to perform music together. Up against the AI singers that dominate the music world, the two of them believe that together they can convey their feelings through their songs. Will hard work and luck be enough for the duo to create the biggest miracle that Mars has ever seen? [Written by MAL Rewrite]

During the dawn of the 21st century, the United Nations Kurobe Research Institute was established in Japan to investigate an ancient artifact, which was discovered during the construction of the Kurobe Dam. Scientists from around the world have gathered in the facility to study the object, while their children enjoy their everyday lives attending Mt. Tate International Senior High School. Yukina Shirahane, a reserved high school girl, is the daughter of the facility's head scientist. While visiting her mother at the facility, Yukina manages to solve part of the artifact's puzzle. To her surprise, what appears before her is Kennosuke Tokisada Ouma, a young samurai from the Sengoku era. As a threat approaches from outer space, Yukina, along with Kennosuke, finds herself defending Earth against the invading forces. Along the way, she discovers the mystery behind Kennosuke and the reason he is determined to protect her. [Written by MAL Rewrite]

OZ, a virtual world connected to the internet, has become extremely popular worldwide as a spot for people to engage in a large variety of activities, such as playing sports or shopping, through avatars created and customized by the user. OZ also possesses a near impenetrable security due to its strong encryption, ensuring that any personal data transmitted through the networks will be kept safe in order to protect those who use it. Because of its convenient applications, the majority of society has become highly dependent on the simulated reality, even going as far as entrusting the system with bringing back the unmanned asteroid explorer, Arawashi.

Kenji Koiso is a 17-year-old math genius and part-time OZ moderator who is invited by his crush Natsuki Shinohara on a summer trip. But unbeknownst to him, this adventure requires him to act as her fiancé. Shortly after arriving at Natsuki's family's estate, which is preparing for her great-grandmother's 90th birthday, he receives a strange, coded message on his cell phone from an unknown sender who challenges him to solve it. Kenji is able to crack the code, but little does he know that his math expertise has just put Earth in great danger.

[Written by MAL Rewrite]