Date A Live - Thirty years ago, the Eurasian continent was devastated by a supermassive "spatial quake"—a phenomenon involving space vibrations of unknown origin—resulting in the deaths of over 150 million people. Since then, these quakes have been plaguing the world intermittently, albeit on a lighter scale. Shidou Itsuka is a seemingly average high school student who lives with his younger sister, Kotori. When an imminent spatial quake threatens the safety of Tengu City, he rushes to save her, only to be caught in the resulting eruption. He discovers a mysterious girl at its source, who is revealed to be a "Spirit," an otherworldly entity whose appearance triggers a spatial quake. Soon after, he becomes embroiled in a skirmish between the girl and the Anti-Spirit Team, a ruthless strike force with the goal of annihilating Spirits. However, there is a third party that believes in saving the spirits: "Ratatoskr," which surprisingly is commanded by Shidou's little sister! Kotori forcibly recruits Shidou after the clash, presenting to him an alternative method of dealing with the danger posed by the Spirits—make them fall in love with him. Now, the fate of the world rests on his dating prowess, as he seeks out Spirits in order to charm them. デート・ア・ライブ - 精霊ーー異世界より舞い降りし、謎に包まれた存在。 かの存在は、空間震と呼ばれる凄惨な災害を伴って出現する。 だが、精霊自身がもつ力は、そんな人知を超えた災害さえも比較にならないーー。 それまで、なんの変哲もない街に住み、普通の高校生活を送っていた五河士道は、 ひょんなことから、空間震の渦中へと飛び込んでいく羽目に陥る。 その行動が、彼の日常を大きく変えてしまうなど、露ほども知らずに。 空間震の中心に辿り着くと、士道はひとりの美しい少女に出会う。 望まぬ争いを強いられ、欲さぬ破壊を繰り返す彼女こそ、 精霊と呼ばれる存在だった。 彼女を苦しみから解放する方法。 それは、武力をもって殲滅する、もしくはーー デートしてデレさせる! 世界の存亡を、精霊の運命を賭けた究極のミッション! 五河士道の戦争<デート>が今、始まる!
