One day, news spread across Kivotos that the General Student Council President had disappeared. Taking advantage of the chaos, unrest intensified in each school district. Gehenna's Prefect Team and the Pandemonium Society began skirmishing, while at Trinity the power struggle within the Tea Party grew increasingly fierce. Amid all this, a certain adult—"Sensei"—arrived as the advisor of Schale and restored control of the Sanctum Tower. Requests of all kinds poured in to Sensei, who steadily earned the trust of the students.