|This is part of the Sky Pretty Cure Series!|
|Season||Sky Pretty Cure Series|
|First Appearance||Episode 19|
- Koshokukoi Rubellit: Rubellit is Katsuo's main client and an internationally known idol. She is a young high school student, who sometimes tends to question Katsuo's decision. Katsuo has been Rubellit's manager since she was about five years old.
- Koshokukoi Rei: Rei is Rubellit's older sister, who acts a lot like her Co. Manager. She tends to be strict towards both, Rubellit and Katsuo.