TV-Series
Description
Ouranos is the head of the Guild in the city of Orario and one of the oldest and most powerful gods in the series. He was among the first deities to descend from Heaven roughly a thousand years before the beginning of the story, and he holds the distinction of being the first god to bestow falna, the divine blessing that creates adventurers, which also made him the first to form a familia. The legendary craftsman Daedalus was once one of his dependents. Over time, Ouranos dissolved his own familia and founded the Guild instead, deliberately giving up any military force so that he could serve as a neutral governing authority in Orario. His personal philosophy is to rule without governing: he leaves the daily administration of the Guild to his deputy Royman Mardeel while he himself remains in the Room of Prayer beneath the Guild headquarters, where he continuously channels his divinity into prayers that keep the monsters of the Dungeon from pouring out onto the surface. He has carried out this unseen duty for a thousand years, and his role is effectively the cornerstone that prevents the world from being overrun by the Dungeon's creations.

In appearance, Ouranos is a towering figure with white hair, blue eyes, and a height of around two hundred ten centimeters. He typically wears a white robe, a black hooded cloak, and sandals. As a Great God, the intensity of his presence and the weight of his divine aura far exceed those of ordinary gods, and he carries himself with a grave, imposing stillness that suits his age and responsibility.

Personality-wise, Ouranos is extremely stoic, patient, and selfless. He rarely shows emotion and tends to work from the shadows, directing events through trusted intermediaries rather than acting openly. Beneath that cold exterior, however, he is compassionate and unusually open-minded for a deity, being the first god to believe that the Xenos, the intelligent monsters born in the Dungeon, could one day coexist peacefully with the people of the surface. His primary motivations are the preservation of peace in the Lower World through the containment of the Dungeon and the protection of Orario's stability, even if that means making hard or secretive decisions that others might misunderstand.

In the story, Ouranos acts as a background authority whose influence shapes many of the series' larger events. As the leader of the Guild, his approval is needed for major undertakings, such as large-scale ventures inside the Dungeon, and the other gods of Orario generally defer to his position. His connection to the Dungeon also allows him to sense when something abnormal happens within it, including significant and rare events. In the fifth season of the anime, he continues to appear as a supporting figure, maintaining his role as the mysterious head of the Guild while the narrative focuses on the conflict surrounding the Freya Familia.

His key relationships reflect his method of working indirectly. Royman Mardeel handles the ordinary business of the Guild in his name. Centuries ago, Ouranos took in Fels, a mage found in a wretched state, and Fels has since served as his personal and secret agent, carrying out sensitive missions that the Guild cannot officially touch. Through Fels and arrangements with the Hermes Familia, he quietly involves himself in matters such as investigating the emergence of talking monsters and supporting the cause of the Xenos, even though such sympathies put him at odds with the general sentiment of the city. He has also extended subtle support to the main adventurer party of the story, such as covering the cost of treating an adventurer's injuries after a major incident in the Dungeon. Among the gods, he maintains a careful neutrality, though even his divine resistance to charm is not fully proof against the power of the goddess Freya.

Development-wise, Ouranos changes little on the surface, and his arc is largely one of gradual revelation rather than transformation. Early on, he appears as a distant and enigmatic figure whose intentions are hard to read, but over time his selfless burden becomes clearer, and he is shown to be a quiet ally working behind the scenes toward a more peaceful coexistence between monsters and mortals.

As a deity, Ouranos possesses a wide range of divine abilities, most of which he sealed after descending to the mortal world according to the rules of the gods. His most defining power is his divinity, which he uses to strengthen the prayers that keep the Dungeon's monsters suppressed, a function that makes him uniquely vital to the survival of the Lower World. He also possesses supernatural perception, giving him reliable intuition and the ability to immediately tell when a mortal is lying, though he cannot distinguish deception between fellow gods. Additionally, he can create a divine mirror that allows him to observe any location in the Lower World, a privilege he is permitted to use despite his departure from Heaven, though its use remains restricted. His status as a Great God further grants him a degree of resistance to the charm abilities of the goddesses of beauty, making him one of the few deities who can withstand such influence to any meaningful degree.