The "local heroine fighter" of a certain city became popular and a national star. Because of this, "local heroines" debuted in various other places, and their action live events became a hit trend nationally. In Hinano City, high school girl Misaki Shirogane and other girls become local heroines (at the urging of Misaki's aunt, the prefectural governor) and vow to produce action live events.
After suffering from a shoulder injury, shy first-year university student Haruki Bandou gladly takes the opportunity to give up judo, failing to find happiness in the sport regardless of his family owning a dojo. He did not expect, however, that his best friend Kazuma Hashimoto would also decide to leave their university's judo club at the same time as him. Despite Haruki's protests, Kazuma already has plans for a new and revolutionary activity: a cheerleading team made up of only men. Although heavily reluctant, Haruki ends up helping his friend set up the team. Through sheer determination, and with support from their newfound club members, Haruki and Kazuma persist in founding the Breakers, the first ever all-male cheerleading team of Meishiin University, slowly making history in spite of the feminine tag attached to the sport of cheerleading and the prejudices, physical challenges, and self-doubts that inevitably follow.
After the accident in which she lost her mother, 16-year-old Tooru moves in with her grandfather, but due to his home being renovated, is unable to continue living with him. Claiming she will find someone to stay with but also fearing the criticism of her family and not wanting to burden any of her friends, Tooru resorts to secretly living on her own in a tent in the woods.
One night on her way back from work, she finds her tent buried underneath a landslide. Yuki Souma, the "prince" of her school, and his cousin Shigure Souma, a famous author, stumble across Tooru's situation and invite her to stay with them until her grandfather’s home renovations are complete.
Upon arriving at the Souma house, Tooru discovers their secret: if a Souma is hugged by someone of the opposite gender, they temporarily transform into one of the animals of the zodiac! However, this strange phenomenon is no laughing matter; rather, it is a terrible curse that holds a dark history. As she continues her journey, meeting more members of the zodiac family, will Tooru's kindhearted yet resilient nature be enough to prepare her for what lies behind the Souma household's doors?
As tensions between the world of magic and Academy City continues to rise, Touma Kamijou and his hand of negation must face off against both esper and magician in order to protect the lives of those around him. Of course, he is not alone in his fight; whether by his side or out of sight, allies and enemies both old and new will enter the fray to help him.
Toaru Majutsu no Index II continues the story of action and comedy, as the scale of Touma and his allies' battle grows ever larger. A conflict is slowly brewing on the horizon, and magic and science will cross paths once again in the war to come.
The aliens have been defeated, and the Bell has been transformed into a gigantic cherry tree. Now, the brave Magic User's Club must reconvene to deal with a new problem. Apparently, some inconsiderate persons left a skyscraper sized cherry tree in the middle of Tokyo, and it's become a major inconvenience to everyone in the city. Even though they have no idea who could have done such a thing, the Club feels strangely responsible and springs into action. Meanwhile, a mysterious person is spying on the magic club in the form of a small boy.