KADO: The Right Answer - S01

Cool-headed and rational, Koujirou Shindou is a government official and master negotiator with a well-earned reputation. While leaving on a business trip, a giant cube appears and his plane is taken, undamaged, into the mysterious, indestructible structure. As Japanese authorities try to identify the cube's properties and origins, Shindou meets an otherworldly entity known as Yaha-kui zaShunina, who appears in the form of a human man. He assures Shindou that the passengers are not in any danger and asks for help in negotiations with the human world. Hailing from a higher dimensional universe known as Novo, Yaha-kui zaShunina can transfer information between Novo and Shindou's universe through a cube called Kado. Despite having these unfathomable abilities, he does not appear hostile. Instead, he announces that he has come to this world with only one intention: to "advance" humanity, starting with Japan.