Kohaku is a girl setting off from her home town in need of Soma, along with her older brother, Hisui Hearts. At the beginning of the story, they are chased by Incarose, but she saves them by pushing Hisui and herself off of the cliff before Incarose's energy beam hits them. Later, Kor Meteor finds them collapsed on the beach. While giving explanations, Kohaku refers to Incarose as "her". She is the owner of the Soma Elrond (エルロンドerurondo?). During the events of the story, she develops a love interest in Kor and shows a real trust toward him. She now journey's with her boyfriend, Kor along with her brother, Hisui as members of Spirit Force.
