Board Thread:Speculation House/@comment-25045079-20140826195207/@comment-3257939-20141110165155

That's right. It's the reason why I never thought about it because it's the same symbol on his shield. It's also on his trivia so there is nothing apart from the arc symbol on Volume 1 that can be a hint. Unless you actually consider the bunny slippers as a hint for his symbol which is not impossible but it's too weird to be the actual truth.