Not a problem! Uta isn't our first character with this dietary need; in fact, we've had enough occurrences of cannibalistic or otherwise flesh-eating characters that we really should look into adding it to the FAQ.

Characters who require living flesh to function will arrive with a sigil tattooed onto their backs that suppress their carnivorous instincts in full. With this sigil, Uta will be able to function fully without feeding on PCs-- so long as he recharges it at the mana pool fortnightly.

If you have any further questions, feel free to ask!