In the aftermath of the devastating Hyper Hurricanes of 2010, which drastically reduced the global population, the world was reshaped. With economies and militaries crumbling, societies plunged into chaos. The wealthy elite, known as Logos, ruled through power, segregating the impoverished Revenus to the outskirts. Among this turmoil, Katsuragi Jo and Tsurasawa Jin break free from Phantom, a group enforcing Logos' control, with a enigmatic girl named Noto Sana in tow. As various factions vie for Sana for their own agendas, a complex web of intrigue unfolds.