These two are demon spirit manifestation things of the two cities, Thebes ( Left ) and Hamunaptra ( Right ). They both occupy a human boy's body ( I'll draw him later ) and come out when the boy looks into that mirror. It depends on what kind of mood said boy is in for which demon comes out to take over his body.

I'm such a weaboo~ :3c

Hamunaptra/Thebes/Art © Me