The Irregular School explores the foundations of the current controversies and argues that continuing to think in terms of the regular school or the special school obstructs progress towards inclusive education.

Looking at Miyuki and Tatsuya now, it might be hard to imagine them as anything other than loving siblings. But it wasn't always this way... Three years ago, Miyuki was always uncomfortable around her older brother. The rest of their family treated him no better than a lowly servant, even though he was the perfect Guardian, watching over Miyuki while she lived a normal middle school life. But what really bothered her was that he never showed any emotions or thoughts of his own. However, when danger comes calling during a fateful trip to Okinawa, their relationship as brother and sister will change forever...

It's time for the National Thesis Competition to take place in Yokohama but what was supposed to be a grand event for the participating students has been turned into a battlefield. A mysterious band of armed magicians and mechanized weapons have stormed in and it may be up to Tatsuya and the others to get everyone home safely!

The rookie competition is one of the most highly anticipated spectacles of the Nine School Competition and a chance for freshman athletes to shine. First High's beloved Miyuki Shiba takes center stage during these matches to give a beautifully elegant performance. Her brother, Tatsuya, doesn't have a moment to waste as he works around the clock as part of the engineering team, relaxing only when he gets a chance to admire his sister from behind the scenes. But after his teammates fall prey to a horrific accident, Tatsuya is suddenly thrust into the spotlight and set on a direct collision course with the Crimson Price, Masaki Ichijou!

The nationwide All-High Magic Thesis Competition is lauded as a more cerebral and refined contest than the action-packed Nine School Competition. After seeing more than enough gunfights and magical duels in between classes, this change of pace suits Tatsuya just fine. Unfortunately, not every spectator is content with simply enjoying the event. With rival students, intelligence operatives, and a foreign assassin all in attendance, Tatsuya might need more than just his wits to keep everyone safe!

At the same that the leader of the USNA's elite magician unit, the Stars, traveled to Japan under the identity of an exchange student named Lina, the parasite incident wreaked havoc on the First Magic High School until Tatsuya and his friends saved the day and brought the incident to a peaceful conclusion. However, the parasite merely lost its first host and continues to wander this world. More importantly, it's found its next host-a humanoid helper robot. After copying Honoka Mitsui's behavior and patterns, the parasite has been reborn as Pixie, vowing to follow and serve Tatsuya. After learning more about parasites from Pixie, Tatsuya gathers Miyuki and the others to head towards the Aoyama Cemetery to fight against a new impending danger!

Gu Jie, a magician who orchestrated a sinister suicide bombing by manipulating corpses to do his bidding, has gone into hiding somewhere in Japan. As public outcry against magicians builds and humanist forces gain momentum, the Ten Master Clans task Tatsuya, Katsuto, Mayumi, and Masaki with determining the whereabouts of the mastermind behind the bombings. But when Major Benjamin Canopus, the second-in-command of the most powerful magic unit in the United States, starts gunning for Gu Jie as well, Tatsuya becomes inexplicably enraged!