Tsubame transfers to a wealthy school after her old high school closes. Platinum 8, an elite student group, forces her to be student council President, but she feels powerless until Kei Shizukui appears.

After being ostracized by the entire school, Tsubame receives Kei's next order. Meanwhile, she loses the student council fee and is held accountable, but she witnesses a council member giving money to Platinum 8.

Various sports clubs bombard the student council with complaints, asking for budget allocations and club room assignments for the new school year. Furthermore, the student council room is overtaken by unpopular sports clubs lacking their own club rooms.

The student council room is vandalized by Platinum 8, but Tsubame is warned by the teachers not to aggravate the situation. Kei blames the teachers for the school's corruption and publishes a scandalous photo of Tsuboi in the school newspaper to incite a counterattack.

Tsubame runs the school festival's executive committee but is boycotted by students controlled by Platinum 8. Kei advises her to find someone close to the Platinum 8's boss who can put on a fake front.

Kei orders Tsubame to revoke the Platinum 8 students' exclusive rights, leading their parents to pressure the school by canceling donations.