As they fly past the clouds of Monoceros, the Winx hear someone shout for help and find Diaspro, and Sky not far away struggling with the black unicorn. Flora realizes that the animal is not evil and the fairies manage to calm it thanks to a rainbow show of the other unicorns. The Monoceros Lumens explain to the Winx that the animal no longer trusts anyone after the last person in whom he placed his trust broke his horn. Surprisingly, the black unicorn decides to bind himself to Jasper, who takes advantage of his help to leave the star, while Bloom and Sky quarrel because the Specialist did not tell her to be on a mission with Jasper.