Constellation:

Character:

The reason for her cross-dressing, is because she needs to take the place of her brother Satsuki, who is too sick to act as the heir of the family dojo. Her Heart Flower is the peony, symbolizing her rebirth as a person and her noble background. Itsuki's Cure ego is Cure Sunshine and her catchphrase is "I will heal the the darkness in your heart with my light."

Source from Wikipeida