Saki Hyuga is one of the main heroines in HeartCatch PreCure! and the civilian identity of Cure Sunshine. She is a cheerful, energetic, and kind-hearted middle school girl who becomes a Pretty Cure to protect the world from evil. As Cure Sunshine, she is known for her bright, sun-themed powers, strong sense of justice, and dependable personality. She plays an important supporting role in the team, often bringing warmth, encouragement, and stability to her friends.