Also known as filth eaters, akaname are creatures noted for their acidic saliva, which allows them to digest almost anything. Although native to forests and jungles, akaname are drawn to the man-made refuse that can accumulate in cities. They are regularly found lurking in garbage dumps, graveyards, run-down ghettos, and remote corners of particularly filthy houses.

Although capable of simple speech, akaname are bestial in nature, and lack any real society. They roam their haunts like stealthy packs of wild animals, supplementing their scavengers' diet with an occasional attack on a live animal or humanoid.