In the dawn of the 21st century, magic, long thought to be folklore and fairy tales, has become a systematized technology and is taught as a technical skill. In First High School, the institution for magicians, students are segregated into two groups based on their entrance exam scores: "Blooms," those who receive high scores, are assigned to the First Course, while "Weeds" are reserve students assigned to the Second Course. Mahouka Koukou no Rettousei follows the siblings, Tatsuya and Miyuki Shiba, who are enrolled in First High School. Upon taking the exam, the prodigious Miyuki is placed in the First Course, while Tatsuya is relegated to the Second Course. Though his practical test scores and status as a "Weed" show him to be magically inept, he possesses extraordinary technical knowledge, physical combat capabilities, and unique magic techniques—making Tatsuya the irregular at a magical high school.

Mahouka Koukou no Rettousei

Following the events of "Scorched Halloween," the world is introduced to a terrifyingly powerful Strategic class magician. In an effort to uncover the identity of this person, the United States of the North American Continent (USNA) dispatches the most powerful asset in its arsenal to Japan on a covert mission—the elite magician unit "Stars" and its commander, Angie Sirius. At First High School, Tatsuya Shiba and his friends are having a farewell party for Shizuku Kitayama, who is leaving to study abroad in the USNA as part of an exchange program. In her place, the group welcomes the beautiful Angelina "Lina" Kudou Shields. Around the same time, Tatsuya is informed about the USNA's plan to uncover his true identity. Elsewhere in Tokyo, numerous reports arise of seemingly random bodies found drained of blood. Dubbed as the works of a vampire, it does not take long for Tatsuya to connect the dots and realize that it is almost impossible for the timing of these events to be mere coincidence.

Mahouka Koukou no Rettousei: Raihousha-hen

Driven by conflicting interest groups, the anti-magic movement is gaining dangerous momentum. Warned by the Yotsuba family, Tatsuya Shiba takes countermeasures to foil the plans of crooked politicians and corrupt journalists. He repels the first attack, which framed First High School as an unofficial venue for military education, but his most formidable enemies have yet to act. If Tatsuya wants to preserve his peaceful life with his sister, Miyuki, he must demonstrate once more that no one in the world can outsmart him.

The Irregular at Magic High School