Hikaru loves space and constellations. She is very energetic. With the power of her Star Color Pen and Star Color Pendant, she becomes Cure Star. Along with her friends Lala Hagoromo aka Cure Milky, Elena Amamiya aka Cure Soleil, Madoka Kaguya aka Cure Selene, Prunce, and Yuni aka Cure Cosmo, she protects the universe from evil forces, recovering the 12 Star Princess Pens and protecting young Fuwa from villains. Her catchphrase is “Kirayaba~☆!”