John Arthur is humanity’s best hope for salvation and peace. His quest to reclaim Earth began when he found MerLN hidden in the ruins of Dr. Locke’s hidden laboratory. Together they traveled the solar system, seeking aid for their quest to overthrow MerGN-A. Though others may call him King, he treats everyone as his equal.

Arthur’s arms are the sign for Earth with Mars and Venus in two of the quadrants, and the other two left empty until he wins the favor of Jupiter and Saturn. The circle of Earth is made up of a green dragon coiled around the crossbars. He wears his coat of arms on the armour’s breastplate, the symbol of Venus over where the armour’s heart would be.