"It's not you," answered Shiranui, "They seem to know a lot more about Necrozma and these Ultra Beasts than even Lusamine; and though they may seem like they're a few cells short of a Complete Forme Zygarde—along with Lusamine in that respect—I have a hunch they're not of this world.  Whether we can trust them or not remains to be seen as they have been trying not to give us a straight answer about Necrozma."