Kamijo is a student in Academy City, where people use science to develop supernatural abilities. The guy’s got a lot of heart – luckily for a young nun named Index. She’s on the run from a sorcery society that covets the astonishing 103,000 volumes of magical knowledge stored in her memory. When Index stumbles into Kamijo’s life, she find a faithful friend and protector, and while Kamijo’s easily the weakest kid in Academy City, he’s got something else going for him: the Imagine Breaker, an unexplainable power stored in his right hand that negates the powers of others. With scientists and sorcerers attacking from all sides, the Imagine Breaker will definitely come in handy – but it’s Kamijo’s loyalty to Index that will be his greatest weapon in the fight to keep her safe.
This is the story of Tooru Kokonoe who has enrolled at Kouryou Academy, a school which trains students in wielding Blaze, soul powered weapons to prepare them for the Dorn Agency’s special peacekeeping corps. When Tooru is partnered with a mysterious girl: Julie Sigtuna, he finds he has to overcome many hurdles to ensure their teamwork and fighting skills are up to par for the duration of their training.
The anime follows Machi, a middle school student who serves as a shrine maiden at a Shinto shrine and takes care of a bear, who lives on mountain in Japan’s northern Tohoku region. The bear, Natsu, has the ability to talk and is Machi’s guardian. When Machi explains to Natsu that she will attend a school in the city, he gives Machi a set of trials that she must pass in order to be able to survive city life.
In the year 2138, virtual reality gaming is booming. Yggdrasil, a popular online game is quietly shut down one day. However, one player named Momonga decides to not log out. Momonga is then transformed into the image of a skeleton as “the most powerful wizard.” The world continues to change, with non-player characters (NPCs) beginning to feel emotion. Having no parents, friends, or place in society, this ordinary young man Momonga then strives to take over the new world the game has become.