Claire Kagenou is the younger sister of Cid Kagenou, the titular character of the series. She is a loyal,caring & Sadistic person who often tries to enjoys hurting Cid his whole life, but her efforts are often met with resistance due to Cid's chaotic and unpredictable nature. Despite her best efforts, Claire often finds herself pulled into Cid's schemes and misadventures, and has to use all her abilities as a mage to help her brother and others in the group.