The Mujina is an old Japanese term primarily referring to the badger. In some regions the term refers instead to the raccoon dog (tanuki) or fox (kitsune). The Mujina of Japanese folklore is an avid shapeshifter and deceiver of humans. One of the forms the mujina is purported to take, is that of a "faceless ghost". The faceless ghost is often referred to by English speakers as a mujina, but the Japanese know it as noppera-bo.