Bake-danuki

Bake-danuki are attested in early Japanese texts and later medieval tale collections. The Nihon Shoki records tanuki in Mutsu that "turn into humans and sing songs," establishing an early literary presence (spring of two months). Later medieval collections (e.g., Nihon Ryōiki, Uji Shūi Monogatari) and regional legends expanded narratives of transforming tanuki; by the Edo period and thereafter local traditions in places such as Shikoku and the Sado Islands produced named, locally venerated tanuki (e.g., Danzaburou-danuki) that became the subject of rituals and communal stories. The term itself—化け狸 (bake-danuki)—literally marks these animals as "transforming tanuki," distinguishing supernatural, shape-changing individuals from ordinary tanuki.

Classical and folkloric sources associate bake-danuki with the real animal, the Japanese raccoon dog, but portray them variably: as ordinary tanuki that transform, as anthropomorphized or oversized tanuki, and in some regional iconography with exaggerated features (notably large bellies and, in later popular imagery, an exaggerated scrotum). Classical texts do not standardize a visual form; many modern popular depictions (games, art) add motifs such as a leaf on the head or a satchel and dancing poses, which are contemporary representational tropes rather than elements emphasized in the early literary tradition.

Primary folkloric abilities include shapeshifting—turning into humans or other forms (the Nihon Shoki mentions tanuki turning into humans and singing)—and trickery aimed at fooling or embarrassing people rather than seduction. Bake-danuki are associated with rhythmic belly-drumming and nocturnal drums (tanuki-bayashi) in folktales. Some regional traditions attribute possession of humans to certain tanuki. Later popular and media adaptations expand or stylize these traits (disappearance, dancing, comic antics), but the core traditional behaviors in the supplied sources are transformation, deception, noisy performance (drumming), occasional possession, and varied moral valence from comic to harmful depending on the tale and locality.