Prinz Artus serves as the central protagonist, reimagined from Arthurian legend within a futuristic setting and established as the heir to Camelot's throne. He operates under a concealed identity, masking his royal lineage to navigate the narrative's challenges while engaging in conflict against the primary antagonist Ziking. His journey involves collaboration with four companions; together they undertake missions and adventures, confronting adversaries and overcoming central obstacles.

Key events in his arc include battling a bear-man entity, recovering stolen artifacts, rescuing the ally Peet, neutralizing a lethal magical flower, protecting royalty from pirate attacks, and confronting figures like an evil heir and a mysterious northern king. These events demonstrate his leadership against antagonistic forces.

His development occurs through varied interactions and conflicts: investigating imposters, participating in a baseball relay, and engaging with mystical elements. He encounters a phantom mermaid, a fire-exhaling dragon, and a phantom princess named Ginebia, participating actively in both physical combats and strategic missions.

The narrative culminates in the decisive confrontation "The Last Heir," resolved by his significant victory, reinforcing his role within the Arthurian framework as a successful leader against adversarial forces.