Plot: While Marinette Dupain-Cheng (Ladybug) and Future Alix Kubdel (Bunnyx) fight against Cat Blanc to fix the mistake that Marinette made, the Supreme Kai of Time Chronoa and Xeno Trunks gives Gustavo da Silva Mello “Gu 10” (Omnix) a secret mission by the man called Henry Emily, his family and his friends in the Equestria Girls World.

There, the Celestialsapiyan also meets as well a girl called Kuriko Akatsutsumi, the younger sister of Momoko Akatsutsumi, she tells him everything that happened and the whole truth about the world of Equestria Girls and they join forces to defeat the Mane 7 and the principals of Canterlot High School.

On the brink of defeat, Gu 10's most important and trusted person sacrifices himself to save his life, and then... The flame, the hidden power, the evolutionary transformation and the heavenly will within, Gu 10/Omnix finally awakens, and with that, the Legendary Evolved Celestialsapiyan Warrior was finally born.