She is a second-year student at Myoudou Academy and is also the student council president. Itsuki's alter ego is Cure Sunshine. Befitting of her image and upbringing, Itsuki is a wise and princely young woman who is very formal with others. She is calm-tempered and kind, willing to help friends and strangers alike, but she can also be stern when it's necessary and has no problem stepping in to defend those weaker than her. She is brave and compassionate, but this will not stop her from unleashing rage on those who hurt the innocent. She is strongly admired by others for her strength in character and as a person, which played a part in her struggle to find a compromise between who she thought she had to be and who she wanted to be.
Itsuki has a fondness for anything cute and girly. While she is normally gentle and seems to be on the introverted side initially, she becomes excited by things like toys and clothing. When she realizes she can embrace this part of herself, she begins to show it more openly to others.
