Kairi - Kateina's only daughter, with an affinity for Air and Water. She fights using sharp claw-like weapons, and is shunned by people on Jarodimia. She has the spirit of a monster named Durbe sealed within her. She is a proficient songstress who wants to join the Routen Band; her theme is "That Blue Blue Sky".
Durbe - little is known about it, but I think it references Shin Megami Tensei somehow?