|Season||Sky Pretty Cure|
|First Appearance||Sky Pretty Cure 21 (mentioned)|
Kiishi Kazuki is a minor character of the Sky Pretty Cure Series. Kazuki was Topaz's older brother who died when he was two years old. Topaz never met him because he passed away a year before she was born.
- Kiishi Mitsuko - Kazuki's mother.
- Kiishi Kouki - Kazuki's father.
- Kiishi Topaz - Kazuki's younger sister.
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