"The Wings of Rean" is a six-part OVA series set in the expansive universe of the "Aura Battler Dunbine" franchise, serving as a sequel to the original 1983 series. The story takes place in the mystical world of Byston Well, a realm where advanced biomechanical machines known as Aura Battlers are powered by the spiritual energy of their pilots. The narrative centers on the conflict between the forces of the Kingdom of Mi Ferario and the rebel group known as the Rean Army, who seek to overthrow the oppressive rule of the kingdom.

The protagonist, Shot Weapon, is a young man from Earth who is transported to Byston Well and becomes embroiled in the ongoing war. Shot pilots the titular Aura Battler, Rean, a powerful machine with unique capabilities. His journey intertwines with that of Marvel Frozen, a skilled warrior and leader of the Rean Army, who fights to liberate her people from the tyranny of Mi Ferario. The two form a complex alliance, driven by their shared goal of ending the kingdom's dominance.

The plot explores themes of rebellion, loyalty, and the consequences of war, as the Rean Army faces off against the technologically superior forces of Mi Ferario. The kingdom's ruler, King Shou Zama, seeks to maintain control over Byston Well, utilizing advanced Aura Battlers and ruthless tactics to suppress dissent. As the conflict escalates, Shot and Marvel must navigate shifting alliances, personal sacrifices, and the moral ambiguities of their fight.

Key characters include Nei Gaan, a former ally of Marvel who becomes disillusioned with the Rean Army's methods, and Tiffa Adill, a mysterious figure with a deep connection to the Aura Battlers and the spiritual forces of Byston Well. The series delves into their motivations and relationships, adding depth to the overarching narrative. The story culminates in a climactic battle that determines the fate of Byston Well and its inhabitants, leaving lasting implications for the world and its characters.