Marg lost his parents and was forced to live alone on planet Gishin after Zure took his little brother Mars away from him. Hoping to overthrow Zure, Marg joined a guerrilla group and fell in love with Ruru, the daughter of Ura. Unfortunately, the group collapsed, and Zure captured and brainwashed Marg into being a soldier. After much struggle, Marg was finally able to reunite with Mars, but it came at a terrible price - a deadly battle between the two brothers.