With a facade of a refined and proper lady, Kirari is in truth a calculating, twisted, self-centered, manipulative, and psychopathic sadist at the core. Kirari is a complete narcissist who belittles everyone besides her, believing everyone is to play by her terms alone. Her gambling skills are so outlandish and her own personality is so imposing that nobody dares to go after her, specially head on. Even those who do find themselves regretting dearly. Along with Mary and Yumeko, her two best friends, she is the third head responsible for the criminal organization who organizes hitmen contracts within the school.