Miki039s twin sister who feels overshadowed by his talent and dirtied by comparison with him. Kozue resents Miki039s affection for Anthy Himemiya and is prone to quotacting outquot to grab her brother039s attention most notably by exercising loose sexual morals. Like Nanami Kozue also seems to have an extreme brother complex. She is very protective of Miki and is the reason that he does not have a girlfriend despite the affection of many of his schoolmates. Kozue considers herself a quotwild animalquot wanting to be freed from adult rules and restrictions in reality she is resentful of her father039s remarrying. taken from wikipedia.org Her blood type is O.