(Japanese: デート・ア・ライブ, Hepburn: Dēto A Raibu) The series begins with a strange phenomenon called a "spatial quake" devastating the center of Eurasia, resulting in at least 150 million casualties. For the next 30 years, smaller spatial quakes plague the world on an irregular basis. In the present, Shido Itsuka, a seemingly ordinary high school student, comes across a mysterious girl at the ground zero of a spatial quake. He learns from his adoptive sister Kotori the girl is one of the "Spirits" from different dimensions who are the real cause of the spatial quakes, which occur when Spirits manifest themselves in the real world. He also learns Kotori is the commander of the airship Fraxinus, crewed by the organization Ratatoskr and its parent company Asgard Electronics.
