Kivotos is a federal megalopolis comprising thousands of schools and is led by the General Student Council (GSC), which acts as its governing body. Ironically, despite being an academy city, Kivotos is rife with gun violence, and all students wield firearms as part of their everyday lives. As if the crisis in Kivotos was not enough, the GSC president is nowhere to be found. Fortunately, before her sudden disappearance, the GSC president enlisted the help of Sensei—a teacher who is most likely the only one in Kivotos—to support students in their time of need. Sensei's first course of action is to assist Abydos High School, a once prestigious academy now with merely five students in attendance. These remaining students are doing everything they can to pay their academy's crippling debt of almost one billion yen.

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Presumed dead, master con artist and recovering amnesiac Dorothy is discovered by Shanghai Longu-bang, a mob who wants payback for her conning them. With no memories and nowhere to go, she must rely on a local crime underboss to elude Taipei’s criminal underworld all while tracking down leads to her mysterious past.

Despite a rough start, Makoto Misumi's life in another world takes a positive turn when he meets more demihumans who recognize his presence. Now as the leader of a fast-growing demihuman community, Makoto wishes to make human society more accepting of them and thus builds a business showcasing the demihumans' abilities. To extend his reach further, Makoto enrolls at the Rotsgard Academy to learn magic and expand his business venture there. Meanwhile, the goddess who summoned and forsaken Makoto had brought two other people to her world shortly after sending him away, making them heroes of their respective nations. Given enough time, Makoto's path will intertwine with both of these heroes, which may cause the world to take a drastic direction.