Benienma

A young swords girl bearing the title of the famous "Shitakiri-Suzume" (Tongue-Cut Sparrow) from Japanese folklore, and diligent owner of Enma-tei. She appears in folk legend as "a creature who helps people in the mountains." This is also how she is portrayed originally in Uji Shūi Monogatari, a collection of stories from the early Kamakura period.