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Spoiler for Summary:

Credit [M]edivh discord cn tldr.

On year AD 2097. Azusa, Isori, Kanon, Hattori, Kirihara and Sayaka first high magic high school graduates had been planning a graduation trip to Okinawa. At the same time, Shizuku and Honoka invited Miyuki and Tatsuya to an anniversary party of a man made island which is also held there. Miyuki and Tatsuya was also given a mission to accompany them to stop a terrorist attack by specialized magician defected from GAA.

Just to be on the safe side, Tatsuya meet up with 101 battalion but an unexpected magician who had once opposed him appeared instead. While Tatsuya handling the terrorist attack in a calm and calculated manner. The two couples of Mibu, Kirihara, Kanon and Isori are enjoying the graduation trip but Azusa and Hattori? Furthermore, Honoka crush on Tatsuya exploded?!?!. Magic high school graduation trip and spring break holiday turned into a troublesome uncertain trip.