Miss Kuroitsu From the Monster Development Department: 1x12

Those Sacrifices Saved from Hell by Black-Winged Devil That Devourers Other Devils Will Revere It as God Regardless of Whether Its Act Makes It a Servant of Heaven or Merely a Savage Cannibal

Zet Arc is attempting to buy out Agastia! But when the takeover turns hostile, who will appear to join Miss Kuroitsu in the fight?!