Chise is an ordinary schoolgirl: small, frail, and not particularly intelligent. Her greatest joy is her budding romance with her classmate and childhood friend, Shuuji. They both live in a small military town in Hokkaido, where high schoolers have few concerns other than who is dating whom and complaining about the steep climb up "Hell Hill" every day before school. One day, Shuuji and his friends make a trip to Sapporo to buy gifts for their girlfriends. A massive air raid on Sapporo that day kills thousands, including one of Shuuji's friends, and signals the beginning of a war. Fleeing from the carnage, Shuuji spots Chise, though now she has steel wings and a massive gun where her right arm should be. Against her will, she has been transformed into the ultimate cyborg weapon, capable of leveling entire cities. As the war rages closer and closer to their hometown, Chise and Shuuji's relationship is strained by her transformation, and they are left to wonder whether she is even still human. [Written by MAL Rewrite]

Alma Tandoji lives a lonely life. One day, Ruri Alba, a girl accompanied by her butler and maids, visits him. Knowing the power of Sacred Seven is latent within Alma, she asks him to lend her his powers. However, he refuses and drives her away since he injured many with his unusual strength in the past. Meanwhile, a fiendish Dark Stone creature suddenly appears in this peaceful town in the Kanto region. Only Alma's power of Sacred Seven can fight against it. But Alma just lets his power run amuck and things begin to get worse. Ruri raised her gemstone in order to release his true abilities, My Soul I give to you. With Ruri's wishes engraved in it, will Alma be able to defeat the Dark Stone?

Years ago, humanity almost got wiped out by huge magical armored insects that had become too strong and aggressive to handle. Because of these giant bugs, humans do not live on the earth anymore, but in floating cities instead. However, this does not mean that everything is lost, because the wizards from prestigious floating wizard academies are fighting these monsters. Kanata Age is a young man now labelled as a traitor even though he was once praised as the "Black Master Swordsman." He gets a chance to repair his reputation by instructing the team E601, which seems to be facing some difficulties. It consists of three girls, Misora Whitale, Lecty Eisenach, and Rico Flamel, each with problems of their own. It appears that Kanata will get in deep waters more than once because of them...

Kei Asai lives in the oceanside city of Sakurada—a town where the inhabitants are born with strange abilities. On the school rooftop one day, he meets Misora Haruki, an apathetic girl with the power to reset anything around her up to three days prior. While no one knows when she has reset, not even Haruki, Kei can retain everything before the reset thanks to his own ability: photographic memory. After they successfully help someone by combining their powers, they join the Service Club to aid others in their town. However, their club becomes involved with and begins completing missions for the mysterious Administration Bureau—an organization that focuses on managing the abilities in Sakurada and manipulating the town's events for their own ends. They may find out that there are more things at work in Sakurada than the machinations of the uncanny organization. [Written by MAL Rewrite]