For Chacrecon's contest, #MASKCOMP.

#ZueltheCat #Xeul

This is also a bit more info on Xeul. She often disguises herself as her host, Zuel, since she is a demonic parasite who her true identity is unknown...for now. Either when Zuel cries shadow tears that make Xeul's mark under her eye or when she absorbs enough negativity from Zuel, she comes out. She can come out as her own being through Zuel's shadow, thus being her special ability. I'll give a full reference later.