Bilbringi I is located in the Bilbringi system. It is a small, but very active planet in volcanic terms. Fields of lava roil and warm the surface and hot ash falls over it like a constant rain while the planet's narrow orbit puts it directly under the gaze of the merciless Bilbringi sun. Bilbringi I has no rivals in the system for the title of hottest planet -- the majority of Bilbringi IV's volcanoes have gone dormant and, though the smaller Bilbringi V boasts an impressive belt of active fields, its distance from the sun allows it to maintain a generally temperate climate.

Though astronomers are certain that Bilbringi has been "visited" by numerous asteroids, evidence of these encounters has been overwritten by the volcanic activity. In addition to a constantly shifting surface, the planet's skies are thick with volcanic dust and smoke, which means that its surface cannot be seen distinctly from space.