Kirari is the student council president of Hyakkaou School. She's a powerful gambling player who almost always wins. She's calm, manipulative, arrogant, amused. She gets bored easily in gambling if the person in front of her doesn't bet everything she owns. She always have a small smirk. She can be scary when she's interested by something. She sees students in debt as inferior beings. She's sensual. She has a bodyguard named Sayaka whom she is very fond of. She as a masked sister named Ririka.