Ouranos (ウラノス) is the head of the Guild.
Ouranos has white hair and blue eyes. He wears a white robe with a black hooded cloak and sandals.
Ouranos follows the philosophy of ruling but not governing, leaving the matters of the Guild to Royman Mardeel, while he himself stays in the Room of Prayer under the Guild to use his divinity to keep monsters from coming out of the dungeon. He is quite stoic, having patiently watched over the dungeon for 1000 years, and is open to new ideas, being the first to believe that the Xenos could peacefully coexist with the people on the surface.
- Ouranos is named after the primordial Greek God of the sky.
- Ouranos was one of the first Gods to descend from heaven.