My Master Has No Tail, Volume 6

Mameda's powers of trickery are weakening, and she has become unable to maintain her human disguise! Mameda ventures down to hell to find Saemon Danuki, a legendary tanuki that is said to have kept her human form, even after death. But standing in her way is the fearsome and merciless ruler of the underworld—the great Lord Enma Daio!