Board Thread:Questions and Answers/@comment-81.153.191.71-20150330161821/@comment-9756677-20150815155132

I think they know he is related to satan. When he told Rin he was the king of time, Samael, he said it was an open secret. Also, didn't he say Lucifer was his strong demon king brother when Rin asked him to stop Lucifer and he said he was weaker than his older brother even though he was sick?