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...

Ten years ago, at the peak of the VRMMO development industry, a game titled Kiwame Quest entered the scene with potential like no other. Boasting a colossal total of 10 sexdecillion branches of possible story scenarios, this game pursued ultimate realism, ranging from humanlike NPCs to the perfect replication of all senses and physical abilities. But it soon became apparent that the game was too realistic, and the popularity of VRMMOs in general gradually began to plunge. At present, due to an accident a few years prior, the high school student Hiroshi Yuuki now immerses himself in full-dive RPGs as a form of escapism. After failing to acquire the latest version of his favorite game, Hiroshi stumbles upon a game shop and meets its beautiful clerk Reona Kisaragi who convinces him to buy a copy of Kiwame Quest so that they can play together. The first time Hiroshi plays the game, he marvels at the realism it offers. However, his astonishment is short-lived as he sets off a series of misfortunes, quickly realizing that the game is even worse than his already stressful life. Nevertheless, Hiroshi still finds himself logging on again despite his growing contempt for the game. With no do-overs in his current disadvantageous situation, Hiroshi only has one goal—clearing the game!

Tiara, a princess from the kingdom of Waleland, travels to the city of Mamkestell to attend a prestigious academy for those who practice magic like herself. After passing a test to prove her eligibility, Tiara reunites with her childhood friend Rosetta, who is also a student there. She then joins and meets Rosetta's group: the athletic Lavie, the reliable Ashley, and the bookish Lynette—all of whom Tiara quickly befriends. In this institution, students are placed into one of three ranks based on their test score: group Noir being the highest, followed by Rouge and Lapis. Tiara's group is ranked Lapis, and if that was not enough, those who fail while ranked Lapis face expulsion. Realizing their dire situation, Tiara urges everyone to start taking their activities more seriously. On top of this, Tiara has one more purpose for excelling at the academy: to become more like her elder sister, who is a very skilled singer. However, to reach the stage that she desires, she will have to overcome many challenges, along with her companions, as she continues her magical journey.

Period is how magic users called who beat Spiral—monsters that were summoned from isolation. Due to the rise of these beings, 14-year-old apprentice Period Haru, who is a part of the Eighth Arc-end Division, is called to break the cycle and cast himself into the endless battle. However, a mysterious thievery occurred and sank the division into bankruptcy, forcing Haru and his other comrades have to leave their headquarters. To rebuild a branch, they have to overcome quest after quest. (Source: MAL News)