Dear Yukio, There are things you cannot know. Things that will put you in danger if I tell you. I know you're angry, and I know there's nothing I can do to fix that. I know we're not on speaking terms, and you probably won't read this letter. I do have to wonder if this separation is killing you the same way it's killing me. Your big brother, Rin Okumura What if Yukio never knew about exorcists?