The Winx discover that the seventh Prime Star is located on an icy and inhospitable planet: Dyamond. They promptly leave for Dyamond, where they come across a small white fox.
- This episode was released exclusively on the official English Winx Club YouTube channel on December 19, 2019. However, it was later unlisted.
- The Crystal Sirenix designs themselves echo back to the original Sirenix from Season 5, as well as Lovix and Harmonix