Sid Stephenson

Sid Stephenson is known as Feudal Rider Melon, a form granted by the use of the Feudal Driver and Melon Lockseed. For a short time, Sid becomes Feudal Rider Canta, a seperate, upgraded form based on his original Melon form granted by the use of the Energy Driver and Canta Energy Lockseed, until Luke's insanity separates Sid from the Energy Driver. When Allen later returns from his "death", he returns as Melon using the Feudal Driver and Melon Lockseed.

He is Allen Stephenson's younger brother, who after his third year in college was a project leader in the Research and Development branch of the Yggdrasill Corporation until he finds out the company has been compromised, usurped by Victor. This causes him to team up with his former friend/foe, Dylan Nicholson.