Juri  

, 樹里

Juri serves as the referee for the Dark Tournament after Koto was forced to switch to commentary duties. It appears that she is a sea-creature demon who holds great admiration in both the human and demon realms. As the tournament progresses, Juri expresses her concern about remaining a virgin, but in the Makai Tournament, Koto implies that she received what she desired. An additional scene shows Juri watching the tournament alongside a mustached demon, likely her spouse.