Celyence Zagan (née Belial) is one of the characters appearing in Highschool ExC. She is Rudori's mother, as well as the sister of Cleria Belial, and the cousin of Diehauser Belial. Celyence also holds some authority over Kuoh Academy albeit she often stays in the Underworld. She is also the current head of the house of Zagan, having taken over after her husband's death. Also the second remaining member of the Zagan household, aside from Rudori.