Board Thread:Questions and Answers/@comment-27347660-20170701020304/@comment-25942629-20170701151808

The Katakana is different, and they are currently described as two different characters. Shikama is female while Shigama is male, according to the English translation; we're waiting to confirm gender until more information has been released. We also know that Shikama is much more passive in personality and cooperated with Mahiru and Shinoa without much difficulty whereas Shigama was the boss of Tenri Hiragi. As far as we know, one demon cannot be in two places at once either.

We don't know their relationship yet. Their pages must remain separate. Although their names are very similar, they are not identical and we cannot consider them to be the same character. It is very tiresome to correct the pages when people keep trying to merge them.

If we find out later that these two characters are really one in the same, then it would be less troublesome to merge the pages then than to merge them now and separate them all over again if we find out otherwise.

This topic was already discussed in the following places:

http://owarinoseraph.wikia.com/wiki/Thread:16308

http://owarinoseraph.wikia.com/wiki/Thread:16609

http://owarinoseraph.wikia.com/wiki/Talk:Shigama_Doji