Koyuki Kurosaki

Koyuki is a troublemaker who has returned to Millennium's student council Seminar. She has a natural talent for deciphering mathematical codes, but she seems to be completely unaware of it... A prodigious cryptanalyst who can crack even the toughest digital encryption systems through nothing more than her intuition. Due to the frequency of her encounters with C&C and her general harmlessness, Koyuki is somewhat on friendly terms with C&C and even calls the members of C&C "Senpai." Her nickname is "White Rabbit." Arguably the most irresponsible known student in Kivotos. She seemingly neve...