Sayaka Mizushiro

A very rich girl who is Chihaya039s close friend. She can transform into Magical Warrior Cerulean Blue with the help of her partner Hazuna and takes the form of her idealized self being more outspoken. She has a strong bond with Hazuna so she is very powerful as a Magical Warrior however this consumes much of her physical strength so she is weak in her civilian form. Source taken from Wikipedia