Violet, a troll that lost her colours due to the Great Bergen attack, who specialises in high notes, she didn't lose her passion for singing but had lost the ability to love it because her mother only taught her to sing to be better than other trolls.
She went along with Cooper, her best friend, to find trolls just like her, finding out there are more than pop trolls and the genre variety a troll can have, and met Prince D, she finds out that Cooper's long lost brother, Darnell, was actually her best friend that she made a promise to marry in the future, as a joke, but because of her parent's separation, she couldn't.
Poppy tries to unite all trolls to become together as one, while Cooper and Violet search for their type of trolls.