Spoiler Alert: This page contains spoilers. Read at your own risk.
Mahouka Koukou no Rettousei Nankai Soujou-hen (魔法科高校の劣等生 南海騒擾編) is the manga adaption of the 'Southern Sea Riot Arc' from the 20th light novel. The adaptation is by Aonagi Nobu (蒼和 伸). It is serialised in Dengeki Daioh, beginning in February 2021 and is currently ongoing.
It’s March, 2097. Azusa and friends have graduated from First High and are going on a trip to Okinawa. At the same time Miyuki and Tatsuya were given a mission to stop a terrorist attack by a specialized magician defected from Great Asian Union.
Just to be on the safe side, Tatsuya met up with the 101 Independent Magic-Equipped Battalion but a former enemy will make an unexpected ally on a joint operation. While Tatsuya handling the terrorist attack in a calm and calculated manner, the two couples of Sayaka, Takeaki, Kanon and Kei are enjoying the graduation trip but Azusa and Hattori? Furthermore, Honoka's crush on Tatsuya explodes!?. The Magic High School graduation trip and spring break holiday turns troublesome.
Australia, Darwin Air Force Base.
The base welcomes the special guest Willian McCloud, an Apostle from the UK. They head to a research facility where he meets with two soldiers, one a grown older man and the other has the appearance of a young girl. They discuss Japan’s current expansion and the threat it poses to the global power balance. McCloud informs the two they are to target the new artificial island made by Japan and sabotage it.
10th of March 2097.
Tatsuya and Miyuki chance upon Masaki in Tokyo and Masaki says his farewells to Miyuki. Once he is gone, Tatsuya takes Miyuki’s hand and the couple walk to their destination, the magic association.
At the association, they greet Maya in a private room and she has them take a seat. After some pleasantries Maya tells the pair about an upcoming memorial for the victims of the battle in Okinawa back in 2092. This brings back some unpleasant memories for the couple about the events of that day. Maya tells them they will be sent as a representative of the Ten Master Clans to the memorial. Maya then hands Tatsuya a sealed document containing further details. Upon reading then, Tatsuya learns of the planned sabotage of the artificial island. Tatsuya returns the documents, but Maya has him decompose them instead. Maya gives him permission to tell Miyuki the real mission, subtly making it clear failure is not an option.
At First High
At First High, Miyuki is stopped by Shizuku in the corridor and she and Tatsuya are invited to join her and Honoka in Okinawa for spring break. Shizuku mentions her father was involved in the building of the new artificial island and wanted to invite them to the ceremony to celebrate its completion. Hearing the dates, Miyuki declines as she has family business to attend the memorial ceremony. The three agree to meet up if they all have free time.
The graduation ceremony for the seniors gets underway with Azusa giving the farewell speech, tears and smiles all around. Tatsuya and the other committee members clear up after the ceremony and when it’s done, Tatsuya heads to the Student Council Room where an elated Miyuki is waiting along with Azusa, Kirihara, Sayaka, Hattori. Isori and Kanon who are planning their graduation trip to Okinawa. Okinawa was picked as the destination partly due to the fact Isori’s family were involved with the construction of the artificial island. Just as Miyuki is about ask about warning them, Tatsuya tells her no, prioritising the secrecy of the mission.
Tatsuya meets with Sanada, Fujibayashi, Yanagi and Kazuma at their unit’s headquarters. There Kazuma briefs the other four on their mission to stop the artificial island from being sabotaged on the 28th and that foreign operatives are involved. Kazuma confirms that special forces will deploy on the 24th and that he will be personally present onsite. Kazuma also comments Tatsuya will be there as a representative of the Yotsuba and not a special duties officer. Tatsuya contemplates the enemy’s goal as he accepts his orders.
Behind the Scenes
March 23rd, Okinawa Airport.
Bradly Zhang, a large man who escaped the Great Asian Union, is making his way through the airport. Clearing customs Bradley makes it outside where he finds no one present until he is senses a hostile presence. Turning around Bradly is faced with Lu Ganghu who addresses Bradley as a traitor.
A fierce fight ensures between the pair and Bradley is slowly backed into a metaphorical corner as Lu pressures him in close combat until a man wearing a hat and sunglasses interrupts the fight. Lu is ordered to retreat over the comm. The fight over, the man in the hat leads Bradley away to a waiting car.
In a private meeting room in the airport, Kazuma, Sanada and Fujibayashi oversee the situation alongside Chen. The man in the hat is identified as James Jackson from Australia. As Kazuma orders an investigation into Jackson, Lu Ganghu arrives in the meeting room. Chen and Lu had been captured previously, but were released in a prisoner exchange and the they have been dispatched to deal with some renegades, their main target being Bradley.
After the pair from the GAU leave, Yanagi enters the room, and they review the fight between Jackson and Lu. They conclude it proves the renegades are not in league with the GAU. Tatsuya is mentioned and Fujibayashi reminds Yanagi not to mention Tatsuya’s rank on this operation. Kazuma has been ordered by Saeki to undertake a joint operation with Chen’s unit to resolve things. Kazuma orders his unit to treat Chen’s unit as friendlies for the duration of the operation and the others salute their understanding.
Tatsuya, Miyuki and Minami fly to Okinawa and check into their hotel. The following day they attend the memorial for the victims of 2092, the event bring forward a flood of memories of the late Honami who had died in the battle.
After the memorial the three head to a bar where thy meet with Higaki Joseph, who the Shiba couple met back in 2092. After some pleasantries, Joseph directs them to a private room upstairs. There they meet with Sanada, Kazuma and an unexpected Chen Xiangshan from the GAU. The group settle down and discuss the situation with the saboteurs. Tatsuya is told about the two soldiers from Australia and is show a picture of the pair. A middle ages man, James Jeffrey Johnson, and what appears to be a young girl, Jasmine Williams.
Once the discussion is over, the Shiba couple and Minami are invited to dinner, but they decline, using fatigue from the memorial as an excuse. Fujibayashi Kyouko’s absence is also noted.
The graduates from First High are out enjoying their graduation holiday in Okinawa. Their former classmate Sawaki Midori, asks if it was really okay to join the three couples. This embarrasses the two actual couples, Kirihara Takeaki and Mibu Sayaka along with Chiyoda Kanon and Isori Kei, but Hattori Gyoubushoujo Hanzou and Nakajou Azusa are not an actual couple and Azusa fiercely opposes the mistake, and Hattori makes it clear that is why it is fine for him to join them. The Shiba couple is mentioned and the seven discuss how they make a good couple as Tatsuya does not get drowned out by Miyuki’s beauty.
The seven continue their trip when they notice a little girl on her own being tailed by some very suspicious men. Concerned for the little girl, Sayaka goes to speak to the little girl and the little girl tells her that she is waiting for her father.
The suspicious men start closing so the graduates decide to protect the girl, causing an intense fight to break out and the men are incapacitated.
Jasmine is being treated to lunch by the graduates Sayaka reassures her that they won’t be attacked in such a busy area. James Jeffery Johnson arrives, pretending to be Jasmine’s dad and acting in a very overexaggerated manner. Introducing himself as James Jackson in broken Japanese, he thanks the graduates for saving Jasmine. Hattori offers to go to the police and report the attack, but James makes an excuse and he and Jasmine leave.
After they’ve gone, Sawaki brings up how the men before thought, commenting they uses a combat style from the GAU, and the graduates worry there will be a repeat of Yokohama.
Back at their hotel, Jasmine is furious due to James’s poor acting nearly exposing them. Jasmine is actually an adult but looks like a child due to a side effect of being an augmented magician, which has stalled her growth. The conversation moves the attackers, and they agree that the GAU is likely working with Japan to thwart the planned sabotage.
Realising Jasmine has been marked, and likely the hotel as well, they plan how to escape their pursuers and prepare themselves. Outside armoured men prepare to storm the building.
Elsewhere, Tatsuya, Miyuki and Minami are enjoying the sights, but when Minami tries to call for a taxi the system is down. Wondering if it is the terrorists, Tatsuya investigates with his terminal and realises they need not worry as the issue will be resolved shortly.
After Minami manages to order a taxi, Tatsuya has deduced from his knowledge of the militaries system that it is related to the mission and that the parties responsible for the local blackout have already vacated the area.
Kazama receives a report from Fujibayashi that their unit that was going after the Australians has been taken out.
Kazuma and Fujibayashi read the report on the failed attempt to apprehend the two Australian agents. Hearing the details of the spell used, Sanada concludes it must have been Ozone Circle, a famous Strategic Class Magic developed in the old EU and used by Willian McCloud and Carla Schmidt. Australia should have received the spell when the EU split as it was part of the British Commonwealth at the time.
The conversation moves on to the two Australians themselves and Fujibayashi explains that Jasmine is likely far older than she appears, her age likely due to some experimental drug or procedure. She goes on to explain that the allied forces failed to capture her due to interference from some graduates from First High. The meeting concludes with Kazuma assigning Fujibayashi to track the Australians while Sanada hunts the main enemy unit.
Elsewhere Jasmine and James meet with Daniel Liu. It is mentioned that the Yotsuba magicians Shiba Tatsuya and Shiba Miyuki were present at the ceremony and warns them to be wary of the pair. Jasmine is unconvinced due to their ages, but Daniel says not to underestimate them, citing Juumonji Katsuto’s exploits in Yokohama as an example of why they should be wary.
The twenty fifth of March. The Shiba couple are enjoying an exquisite breakfast with Minami, though Minami has to be coaxed into dining with them rather than serving them. After the meal, Tatsuya checks Miyuki is feeling better, and his stare embarrasses her somewhat as they have a tender moment. As she is okay, Tatsuya asks if she wants to go out today, and they settle on a boat trip.
The Shiba couple, along with Minami, arrive at the docks and board a yacht where they are met by Joe who has been assigned as their escort. After some pleasantries, they set sail and head to Ishigakijima.
Once the yacht arrives, Joe guides the trio on a sight seeing tour of Ishigakijima until they arrive at a jewellery store. There, Tatsuya gives Miyuki her birthday present, an expensive pearl necklace, and tells she will have to make do with the necklace for now but he will prepare a ring in the near future.
The trio and their guide return to their hotel later on, where Tatsuya is acting strangely and staring at a building across the way. Minami jumps into action to protect Miyuki, but Tatsuya tells them not to panic and decides to ignore it.
Across the road, James Johnson was the one observing the Yotsuba trio. Tatsuya’s stare had been so intense, even a veteran like James was left physically shaking with fear. The contact, and minimal as it was, reminded James of the reputation the Yotsuba earned thirty years prior when they became known as ‘The Untouchables’. Thinking about recent events in which the Yotsuba were supposedly involved, including that they developed the magic used on the Korean peninsula that forced the GAU to yield, something he cannot believe as it would mean the countries internal power balance would be skewed beyond reason. James realises the Yotsuba aren’t the only party of concern, thinking of his actual enemy on this operation, Kazuma Harunobu, but nonetheless notes the Yotsuba cannot be underestimated.