While struggling to make friends after his parents’ divorce, Koyomi Takasaki meets Kazune Takigawa, but apparently, they already have. Kazune reveals that she’s from World Line 85, an alternate universe in which she and Koyomi are lovers. But in a reality where moving between dimensions is natural, could Koyomi be the one from another world?

Set in 2032 AD. The truth is revealed through the appearance of the Cabinet Intelligence and Research Office, which is hostile to Section 9 from the background of the resurrection of Public Security Section 9, starting with the case of a terrorist who claims to be "11 individual people", and the appearance of the individual 11-person case and Kuze. Becomes. The information manipulation and crafting activities of the Cabinet Intelligence and Research Office will increase the distrust and opposition of the refugees, and the consolation refugees will be armed and uprising all at once.