|This is part of the Sky Pretty Cure Series!|
|Season||Sky Pretty Cure Series|
|Hair Color||light blue|
Koizumi Nanami is a minor character of the Sky Pretty Cure Series. She is one of Robin's best friends. She had many minor appearances in Sky Pretty Cure and had an important role in Sky Pretty Cure ~Rainbow Star~.
In Rainbow Star 09, Nanami makes her own Pretty Cure outfit and calls herself Cure Ciel (キュアシエル Kyua Shieru?), the Pretty Cure of stardust and stars.
Cure Ciel - Nanami's "alter ego" for the nijiiro cosplay day. Ciel means "sky" in French.