Name: Zen Maverick

Anti-Hero/Hero Name: Kamen Rider Millennium

Backstory: Zen Maverick went through all pain and suffering anyone could ever imagine. His parents got killed by Team STRQ, but before they could take him in (and use him as their personal punching bag), he was rescued and adopted by an individual named Kataguri Serizawa. He used to have a girlfriend named Rachel, but she was forced by her power-hungry parents to date Riser Phenex instead. Zen was then given the MillenniumDriver, becoming an Anti-Hero known as Kamen Rider Millennium. He defeated most of Union Academy, and proclaimed himself as the true king of both Daikaiju-Verse and Megaforce-Verse until he heard about Kamen Rider Primordial and Rainbow Ranger. Along with Rachel and some of his true friends, Zen traveled to face both Kings of their respective Omniverses, unaware of the remaining Union Fake Heroes' plot to overthrow him. After Zen defeated both Ethan and Okuyasu, he was suddenly blasted by the "Union Kamen Rider" known as Kamen Rider Ddrarcall-Zein as the surviving Union Heroes come in and reveal their plan to conquer and ruin all Daikaiju and Megaforce. However, both Kamen Rider E-on and Sentinel Knight Ranger came into picture along with several Daikaiju and Megaforce Heroes to help Zen, Ethan and Okuyasu. After the defeat of Union Academy, Zen started his quest for redemption to become a hero he promised to be.

Love Interest: Rachel Smith

Driver: MillenniumDriver

A/N: This is an OC in collaboration with KaijuMaster20, and also he can become all Kamen Riders, including Kamen Rider OCs like Birthright, Dynamix, Data-Fuse NEOS, etc.