This is the 초 chapter Trix Legacy. The story revolves around the Trix and how they avenge the death of their parents from the kingdom of Domino and it's leaders.
What if the Trix had a younger sister? This is the story of Macie, the 13 년 old sister of The Trix. Takes place during Season 2 of Winx Club, but doesn't go exactly like the story line.