Toad Oil

The Toad Oil (Gamayu) is a special type of oil that is very flammable. The only places that allows the Toad Oil to stay in its liquid form are Mt. Myoboku or the interior of a toad. Outside these places the oil evaporates in a short period of time.

Real World
Toad Oil, or Grease, is applied to the skin - particularly the face - in order to heal damaged skin and improve the complexion. In the Edo Period it was highly valued by Samurai for treating cuts. There is also an annual toad festival here in which a portable toad shaped shrine is carried through the streets.