Tatsuya and the other Student Council members were spending their days extremely busy in order to deal with the sudden change of events for the Nine Schools Competition. However, out of the blue, Tatsuya receives an email from an unknown sender. The email states that the changes in the competition were due to pressure from the JDF, and that the Kudou Family was planning to piggyback on the JDF's order to test out a secretly developed military weapon at the Steeplechase Cross-country Event. This prompts Tatsuya to head to Nara, where the Kudou Family's stronghold is based, to find out more about the experiments they are conducting.

A notice has been sent to the magic high schools across the country that a portion of the events in the Nine Schools Competition will be changed. Shockingly, three of the six events will be changed. In order to respond to the sudden change in events, First High School's Student Council is thrown in a frenzy to understand the new rules, reselecting athletes and readjusting their CADs. While everyone was complaining about the Competition's management due to the sudden change in timing, one month before the start of the Nine Schools Competition, Tatsuya had a growing suspicion about the strong military flavor of all the newly added events.

News outlets were enthusiastically reporting the great success of the stellar furnace experiment carried out by the students at First High School. However, since Takuma Shippou had heard from his father that the Saegusa Family was going to be the ones to deal with Diet member Kanda, he thinks they used Tatsuya to claim credit for the experiment's success themselves. Takuma then takes his pent-up anger out on Kasumi Saegusa, who he happened to pass by on campus. Kasumi, unable to turn a blind eye to these insults against her family, is on the brink of engaging in a magic fight with Takuma... But then, the Disciplinary Committee intervenes before either of them makes their move, and takes them in for questioning. Tatsuya suggests they let them duke it out in an official match to end this mutual enmity between the two once and for all.

Information gets out that Kanda, an anti-magic advocate and Diet member, will visit First High School with the media to observe the school's curriculum, claiming that he has heard disturbing rumors about it. He plans to create an uproar with the media and assert that the school is brainwashing students into the military - if he finds anything suspicious of that nature. To stop this ploy, Tatsuya suggests performing an experiment showing the students creating a Sustained Gravity Control-Type Magic Thermonuclear Fusion Reactor = Stellar Furnace. The students plan on demonstrating that the magic education they receive at the school can solve energy problems, and that magic can contribute to the peace of humankind depending on the type of magic they use.

The entrance ceremony has ended, and club recruitment of the freshmen has begun. Amidst the competitive recruitment frenzy, the Robot Research Club and Motorcycle Club were getting in a heated stare off over a freshman that both clubs were aiming to recruit. Kasumi, from the Disciplinary Committee, and Shippou, from the Extracurricular Activities Federation, intervene. However, now the two who had come to break up the fight begin arguing amongst themselves over who should have authority over the situation, and were on the brink of initiating a physical fight. Meanwhile, Koichi, the head of the Saegusa Family, was devising a plan to mitigate the Yotsuba Family's power through a false anti-magician campaign that the USNA's Humanist Extremist group was drawing up for the media.

It has reached the month of April in 2096, and various aspects of Tatsuya's life was changing as he advances to the second year. Tatsuya and Mizuki transferred to the newly established Department of Magical Engineering, and Mikihiko has also transferred out of Course 2, and was now a Course 1 student. Along with this change, Tatsuya and Miyuki were now living with Minami who was sent to stay with them by the Yotsuba Family. Tatsuya enters the school year hoping they would have a peaceful student life this time around, but the new year meant the arrival of new students, like Kasumi and Izumi, the twins of the Sagusa Family, and Takuma Shippou, the new student valedictorian who feels a rivalry towards the Saegusa Family. All of them having their own quirk or two, for better or for worse...

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…