Belladonna Grimn is slightly irritated when her younger brother, Mephisto Pheles, forces her to do exorcist training to take care of a new student, and brother, named Rin Okumura. Belladonna is her human name of course her Gehenna name is Egyn the third demon King of Water the only King able to use there fathers blue flames. She had lived in Gehenna for a long time growing close to only her brother Mephisto, or "Mephy" as she called him, the day that Pheles left Gehenna he brought Belladonna with and she watched silently as her brother became a well known ally to the Exorcists. She herself had never become one but the day Rin stepped into the picture Mephy had some big plans for his older sister.z