Bahl is a powerful and disruptive figure in the world of Shironeko Project: Zero Chronicle, known as a being who threatens the delicate equilibrium between the White Kingdom and the Black Kingdom. Often referred to by titles such as the Dragon God, the Egoism of the World, or the embodiment of worldly selfishness, he operates as a chaotic third party, unaligned with either realm of Light or Darkness.

In terms of background, Bahl is established as an ancient and immensely strong entity who does not belong to any faction. He is the instigator of the imbalance that the White Queen, Iris, fears, and his appearance signals a direct threat to the stability of both kingdoms. His power is such that he can single-handedly challenge and even overpower the King of Darkness in combat, establishing him as one of the most formidable forces in the story's setting.

Personality-wise, Bahl acts as a supremely powerful and capricious old man. His actions are dictated purely by his own whims and desires, without regard for the laws, politics, or conflicts of the Light or Dark kingdoms. He embodies a primal force of destruction, though it is noted that he does not necessarily acknowledge this title himself. This unpredictable nature makes him a danger to everyone; when the two kingdoms are locked in their eternal struggle, Bahl simply and arbitrarily attacks both sides.

Bahl's primary motivation is not conquest or loyalty, but the exercise of his own selfish will. He represents a raw, destructive force that cares nothing for the future generations of either kingdom. The King of Darkness considers him a significant enough threat to form a temporary pact with Queen Iris specifically to deal with him, highlighting how his presence forces even bitter enemies into a reluctant alliance.

In the narrative, Bahl's role is that of a great calamity and a catalyst for action. Early in the story, he attacks the western capital of Metis, a city of the White Kingdom. During this assault, he proves to be a nearly unstoppable opponent, as even Queen Iris, with her full power, is unable to inflict any significant damage upon him. This demonstration of overwhelming strength serves to raise the stakes and illustrate the dire nature of the threat facing the world.

Regarding his relationships, Bahl has no meaningful alliances. He is not a servant or ally to the King of Darkness, despite being a dark-aligned entity. Instead, he is an antagonist to all major powers equally. The King of Darkness views him as a cursed being to be eliminated, while the White Kingdom sees him as a terrifying agent of destruction that threatens their very survival. His presence is so universally detrimental that it becomes the rare issue that can prompt cooperation between the opposing rulers of Light and Dark.

There is no clear character development arc for Bahl, as he functions more as a force of nature or a walking disaster than a character who changes over time. He appears as a static, overwhelming obstacle whose purpose is to challenge the established order and demonstrate the need for balance in the world.

In terms of notable abilities, Bahl possesses power classified as destruction. He is capable of unleashing ruinous attacks that can devastate entire cities, as seen during his assault on Metis. His defensive capabilities are equally immense, allowing him to shrug off the full-force magical light attacks of Queen Iris, whose power is tied to the Progenitor Rune, the very foundation of the White Kingdom. His combat prowess is so great that he can gain the upper hand in a direct confrontation with the King of Darkness, a feat that underscores his status as the current strongest power in the story's context.