The private Hyakkaou Academy is a prestigious school where children from good families gather. The top of this school dominated by gambling is the student council, which is the absolute ruler who dominates the lives of the weak and even has influence on the political and financial circles. However, the student council president, Momobami Kirari, suddenly announced the dissolution of the student council and the general election. The rule of the election is one person, one vote. All students are given the opportunity to reach the top of the school. This is the election battle brought about by Kirari, who pursues chaos and pleasure. Not only that, but a new threat also comes with it. That is, the Hyakka clan - people who are also Kirari and Yumeko. Jabami Yumeko and her deep friendship with Suzui Ryota, Saotome Meiari, and Sumeru Itsuki are about to fight a battle with their own beliefs in this planned general election. Become a "bait" in the school where the strong prey on the weak, or eat others and become a "predator" in the ecosystem. The "ultimate election death match" in which the heart is shaken by the fateful choice begins!