Elizabeth Williams states, "In order to fully understand what is going on in Eden of the East: Paradise Lost, we have to look back to the beginning of the television series. Ten missiles hit areas in Japan where no people were living. The event was called 'Careless Monday.' It wasn't that much of a big deal to everyone because no one was harmed. Only three months later, a young woman named Saki meets our hero, Akira. He has no memories of his past life, and he has a mysterious phone."