Thread:Tina tran/@comment-22439-20120707221308/@comment-1044263-20120711000542

(Thank god, you finally got it right) Yes, they are half-brothers! And I think Rin and Yukio know that Amaimon is their half- brother, but not Mephisto. No-one knows that Mephisto is a Demon yet, and the son of Satan at that, so for Rin and Yukio, that is still a mystery...