She-ra and the princesses of power, book 1: Origin of a Hero
Tracey West et Amanda Schank2019

She doesn't need a hero. She is a hero.
On a planet called Etheria, two forces battle for control. The Horde, with its skillfully trained soldiers and advanced technology, has one goal: to conquer all of Etheria in the name of Hordak. The other force, the Rebellion, is made up of princesses and has been fighting to maintain harmony and freedom for all of Etheria's people.
Hidden among them all is a hero to be. Her destiny was written by the First Ones a thousand years ago. Now she is about to rise again.