The Hidden Princess (Winx club AU)

What if Bloom Never ended up on Earth? What if she ended up on a neighboring planet? What if she knew her past since she was little and excelled in her powers before Alfea? What if she had achieved Sirenix before she met the rest of the Winx? What if the promise between Eraklyon and Domino was still in play?
Bloom was raised in the royal palace of Eraklyon along side Prince Sky. Bloom and Sky grew up knowing that they were to be married one day, at first they hated the idea but as they grew older they fell in love. But, only a select few people know about her and are able to see her outside of the palace. Now this year will be Blooms first year at Alfea even though she is well past the transformations and knowledge that they teach there.
What will happen during the years at Alfea with Bloom and the rest of the winx now that Bloom is well aware of her past, how will this change the story and will their be new foes, powers, abilities and friends thrown in? Read to find out.