"Aura Battle Dunbine: The Neo Byston Well Tale" is a 1983 mecha anime series set in the fantastical world of Byston Well, a realm connected to Earth through mystical means. The story centers on Sho Zama, a young motocross racer from Japan who is transported to Byston Well after a mysterious accident. Upon arrival, Sho discovers that Byston Well is a land where advanced biomechanical machines called Aura Battlers are powered by a mystical energy known as Aura. These machines are used in warfare by various factions vying for dominance.

Sho is quickly drawn into the conflict when he encounters Drake Luft, a charismatic and ambitious warlord who seeks to conquer Byston Well and extend his influence to Earth. Drake recruits Sho as a pilot for his Aura Battler, Dunbine, due to Sho's innate ability to harness Aura energy. However, Sho becomes disillusioned with Drake's ruthless methods and joins the resistance led by Marvel Frozen, a noblewoman fighting to protect Byston Well from Drake's tyranny. Alongside Marvel, Sho allies with other pilots, including the skilled warrior Todd Guinness and the enigmatic Cham Fau, who harbors her own secrets.

The narrative explores the escalating war between Drake's forces and the resistance, with Sho caught in the middle as he grapples with his role in the conflict. The story delves into themes of loyalty, morality, and the consequences of wielding power, as Sho struggles to reconcile his desire to return home with his growing sense of responsibility toward Byston Well. The series also introduces the concept of the "Upper Earth," a higher plane of existence that influences the events in Byston Well, adding a layer of mysticism to the conflict.

As the war intensifies, Sho and his allies face numerous challenges, including internal strife, betrayals, and the devastating impact of Aura Battler technology on both Byston Well and Earth. The climax of the series sees a dramatic confrontation between Sho and Drake, with the fate of both worlds hanging in the balance. The story concludes with a bittersweet resolution, as Sho's actions leave a lasting impact on Byston Well and its inhabitants, while also raising questions about the cyclical nature of conflict and the potential for redemption.