Nova also helps Stella and the Winx Club to sneak into King Radius's wedding sejak suggesting they impersonate the flying biker troop.
First appearance: The Mirror of Truth
Age at first appearance: 16
Origin: Solaria
Affiliations: The Winx (friend), Alfea, Solaria
Power/powers: Stars
Relationship: Stella(princess and long time friend), unnamed mother
Info from winx club wiki