Usobuki: two versions of the mask used for supernatural insects and plants, such as the ghost of the cicada in Semi (The Cicada), the ghost of a mosquito in Kazumo (Wrestling with a Mosquito), the ghost of an octopus in Tako (The Octopus), or one of the "demonic" mushrooms in Kusabira (The Mushrooms). It is vaguely reminiscent of the Yase Otoko (thin man) Noh mask representing a ghost suffering in hell.