Board Thread:Questions and Answers/@comment-25942629-20170512220605/@comment-26979728-20170614154706

I agree with ResidentialPsycho about Shigama Douji possibly being a fallen angel and potentially Michaela. But, it could be a dual thing where Mika is either a reincarnation of angel Michaela's original body or a created potential vessel and Shigama Douji is actually angel Michaela's soul.

But, about his relationship with Shikama Douji, maybe it is what other people have said and that Shikama Douji is a splintered off piece of Shigama Douji or alternatively, he could be Shigama's twin brother (like a Cain and Abel thing?) which would work in theory if they were twins with a psychic connection.