A betobeto-san wanders the highways and byways of the Material Plane, searching for unwilling traveling companions to sustain the spirit's appetite for fear. Though this shadow spirit is invisible in darkness or shade, in light they appear as a formless, shadowy mass with two sandaled feet. These sandals are made of wood or bone that cause the creature's footsteps to make the distinct "beto beto" sound from which they receive their name. A wide, toothy mouth smiles in the middle of their otherwise featureless mass, and they can manifest long, clawed limbs.