User blog comment:B214/Question and Answers 4/@comment-82.178.2.66-20141008111745/@comment-99.196.4.193-20141009030055

Benia was introduced as a demi-god (half grimm reaper and half human) by Sona in vol. 14. But you are right that there hasn't beed anyone turned into anything other that devil or angel so far.