How will the Kuroba Twins face the appearance of a “serious” strong enemy...!? April 2099. The twins Kuroba Ayako and Fumiya entered the National Magic University. With their beautiful looks and poise, the two immediately attract attention on campus. On the other hand, the overseas mafia, which initially ignores Shiba Tatsuya's existence and aims to assassinate him, finally sends in their "main force". With the appearance of a formidable enemy that would make even Hashibami Yuki, a professional assassin, tremble, the tension quickly rises!