The Irregular at Magic High School

Throughout the course of the 21th century, science evolved to the point of allowing humans with special skills to develop the art of magic. In 2095, Tatsuya Shiba and his sister Miyuki enroll at the Private Magic University Affiliated High School, but their different grades during the exam tests put them into divergent paths as while Miyuki is paired with the students with high magical skills, (labeled as "Blooms"), Tatsuya is assigned to study with the lower-skilled ones (labeled as "Weeds" in a derrogatory manner).

Tatsuya's skills and wits bring the attention of Mayumi Saegusa, president of the Student Council and Mari Watanabe, leader of the Public Morals Committee invites him to work under her, but the vice-president Hanzo Gyoubushoujo Hattori opposes the inclusion of a Weed among their ranks and challenges him to a duel in which he easily loses.

Once realizing how he was defeated by Tatsuya, Hanzo recognizes his worth and accepts him as part of the Student Council. Now as an official member of the Public Morals Committee, Tatsuya must work hard to enforce order at the school, specially against those who refuse to comply with his authority just because he is a Weed.

Tatsuya is approached by Sayaka Mibu, another Weed like him, who wants his cooperation in a plan to put an end to the discrimination between Blooms and Weeds at the school, but he refrains from giving an immediate answer, suspicious that she is being manipulated by someone else with ulterior motives.

In the end, Tatsuya rejects Sayaka's offer and a group of Weeds led by her lock themselves in the broadcast room, creating a commotion at school. Mayumi then decides to discuss the students' demands by herself, but just as they reach a compromise, the school is attacked by terrorists.

Tatsuya and his friends help defeat the terrorists and put them under custody. After learning Sayaka's reasons for cooperating with them, Tatsuya decides to attack the enemy hideout in order to help clear her name and take back at them for using her and invading the school, assisted by a few other students.

Tatsuya and his friends storm Blanche's hideout, confronting the group's leader, who confirms that he had manipulated Sayaka's memory and with all the terrorists subdued, this information is used to clear her name. After Sayaka is released from the hospital, Tatsuya and Miyuki return to their normal school life, but elsewhere, another prodigious magician make preparations to confront him.

The inter-school sporting event known as the "Nine Schools Competition" is at hand, and Tatsuya, in recognition of his superior magic-tuning skills, is named to the engineering squad, over the objections of a number of Course 1 students. After school, Tatsuya surprises his sister when presents her with a magic tool he developed that allows a person to fly, a feat that no one has never attained before.

Tatsuya and Miyuki pay a visit to Four Leaves Technology, where Tatsuya unveils his flying CAD to Ushiyama, the other half of the genius magic engineer Taurus Silver. After a brief encounter with their father, the siblings set out for the Competition, but on the way there, a traffic accident occurs, putting the students in danger.