Castiel stares over at Dean, shooting him a flat look as Castiel is clearly not yet well versed at lying and wished they had some kind of a signal or something to tell Castiel when not to tell the truth. "Dean is to be trusted, he will explain," he says in Japanese, switching to English with a wave of his hand. "Dean, please explain who we are to Yukio. Aside from being an Angel of the Lord, which I wouldn't have said if I'd known better," he mutters.