Shirosora Diamond / HaSky

Shirosora Diamond is one of the main Cures of Happiness Rainbow Charge Pretty Cure! Diamond is an intelligent young girl, who attends to Shiro Private Middle School. She is very smart and really good at school. She is the only student, who is smarter than her best friend, Emerald. Diamond really likes drawing landscapes. Together with Emerald, Diamond tries to help their friend Sapphire with studying.

Her alter ego is Cure Whitney (キュアホイットニー), the Pretty Cure of intelligence and time. She is represented by the white color. She has also a form change that is called Vanilla Echo (バニラエコー).

Her catchphrase is "Use the time!" (時間を使う).