Arthur operates under concealment of his true identity while journeying with four companions, driven by the core objective to defeat Ziking. This mission defines his character arc throughout the series.

He confronts escalating threats and challenges proactively during the quest, directly engaging in confrontations. This includes instances like swiftly intervening to liberate captured companions when they are kidnapped.

The character exists within a narrative adapting Arthurian legend, reimagined through a futuristic lens. Specific personal background details or internal development remain undefined within the available materials.