When the peaceful world is shattered by an otherworldly invasion, Japan's children are safeguarded in cryogenic sleep until the war's end. Upon awakening, they manifest unique supernatural abilities called Worlds. The six most gifted youths, including childhood friends Ichiya Suzaku and Canaria Utara, must unite to protect their cities from relentless Unknown assaults. As tensions rise and rivalries surface, Tokyo, Chiba, and Kanagawa leaders must set aside discord to fortify humanity's final stronghold against imminent extinction.