Marcus Dark (BDaLs)

Marcus Dark is the long-lost Son of Vitiate Dark and the Crown Prince of the Dark Empire in the Between Darkness and Light series who was adopted by the Thorn Family to infiltrate the Republic of Light and their allies prior to the First Great Galactic War, Marcus was raised by the Thorn Noble Family of Radiant Garden on request of their allies: Erebos Noble Family, who were later placed back on their homeworld after being banished by aid of the Dark Empire.

Sometime after the First Great Galactic War his adopted parents were murdered for doing forbidden research in the Darkness and this act was easily coverup as an accident during the world-wide conflict known as the Radiant Garden Civil War, after being found out as a Keyblade wielder he had to fight across Radiant Garden to reach House Erebos, and eventually get in touch with his true family and the Dark Empire once again.