A Return to the Golden Age: Magistoid Rex Regulus

Earth has been invaded by the mystical powered living machines known as the Magistoids, ravaging almost all of the whole planet within 5 years. Makino J. Mizukawa was with the last human resistance along with rebel Magistoids helping them in their crusade against the Magistoid armadas. But a last-ditch effort to destroy them led Makino to be hurled back in time to the planet of the Magistoids in their Golden Ages, as a Magistoid himself. He must change the future that befell humanity while dealing with external interference and his own flaws that will ensure many complications in his mission.

Author's note: This story is also available at Tapas and RoyalRoad.com.
https://m.tapas.io/series/A-Return-to-the-Golden-Age-Magistoid-Rex-Regulus/info
https://www.royalroad.com/profile/492801/fictions (it will appear once approved)
My email: jonielcomia.jc@gmail.com