성별 : 생일 : 키/몸무게 :
Nanaka Kotegawa (古手川 奈々華)Iori's Elder Cousin. When Iori comes to Grand Blue he doesn't recognise her at first since she had become very beautiful and gets attracted to her only to find out later that she has become a siscon who smells her younger sister Chisa's after worn clothes and takes her photo all the time.