Every year, the prestigious Rikkyouin High School holds a lottery to determine the student council members for the next academic year. On the first day of school, Chihiro Enomoto wins the presidency and his childhood friend Tokino Akiyama secures the vice‑president seat. However, before they can assume their roles, they must complete a one‑year apprenticeship under the current council; any failure to perform even the smallest assigned tasks results in immediate expulsion from the school.