Hyuuga Saki (日向咲, Hyuuga Saki?) is one of the two main Cures in Futari wa Pretty Cure Splash Star. She is a second-year student at Yuunagi Middle School and is in the same class as Mai and later Michiru and Kaoru.

Saki's alter egos are Cure Bloom (キュアブルーム, Cure Bloom?) and Cure Bright (キュアブライト, Cure Bright?), and she is known as the Pretty Cure of Flowers or Moon. Her catchphrase is "I'm in top form!" (絶好調なり!, "I'm in top form!"?).

Her Pretty Cure partner is Cure Egret or Cure Windy aka Mai.