In "Neon Genesis Evangelion" (1995 debut), the story takes place on an earth shattered by the "Second Impact" (referring to the "giant-impact hypothesis 4.5 billion years ago, Theia as the "first impact") in Antarctica, in which the security agency "NERV" tries to secure Neo Tokyo from a "Third Impact", while holding back the real story of the Second Impact from the public and even the protagonists. The Second Impact had led to mass extinctions and wars, as well as significant changes to the planet's climate and population.