Her mouth is a eye? =O

Kind of, it's more along the lines of a slime monster.

Oh =O mmm... I see.
It's a slime monster that live inside her?

Yes and no ^.^; The character is two creatures- A formerly male satyr and a female blood slime. They made a deal to improve both their situation and the slime used magic(she's an advanced spell caster with no combat abilities) to fuse with the blood of the satyr(a combat specialist) and the slime is just as much a part of the satyr's body as any naturally occurring parts. To give the slime her own ability to accurately see and react to the world around her an eye and mind are formed as a replacement for the normal mouth parts and she handles all air and material intake.