how does mephlies eat? also why does mephlies have no mouth?

He's a demon. He doesn't eat. He communictes telepathically.

mabey he wasnt created with a mouth oder born with one.and i dont think he likes too eat Essen if he wants to.demons Liebe souls.

well kinda this is hard idk

I have no f***ing idea why my evil double has no mouth. I don't really even care how he eats!

My best guess is he does the same thing as Satan; steals your soul and devours it

well maybe since he has no mouth. he just drains the energy of the Essen and cosnsume it?