Rex has been alone for 5 years. His memories are gone and has no idea of who he is or where his family is. Or even if they're alive anymore. For 5 years, he's just had himself. He made occasional friends but he's never known what it feels like to have a real family. But he's soon adopted by a couple named Six and Rebecca Holiday and they become his new family. But when he moves with them to a place called Kuoh Town in Japan, he soon realizes that he's more important to the whole world than he realizes... But also the most wanted...