Claire Aoki is a central character in the anime series 'Gleipnir.' She is a high school student with a strong-willed and determined personality. She becomes involved in the mysterious world of shapeshifters after discovering her sister's role in this dangerous realm. Claire's main objective is to find her sister and uncover the truth behind the strange occurrences involving individuals who can transform into monsters. Throughout the series, Claire teams up with Shuichi Kagaya, utilizing his ability to transform into a giant mascot-like creature to achieve her goals.