Tesso (The iron rat) is truly a one of a kind yokai. A rat demon the size of a full-grown man, armed with metal teeth and claws, capable of shredding and tearing almost anything. Combine this with a pied-piper like ability to call a legion of real rats to do his destructive bidding, and Tesso becomes quite a formidable foe to be reckoned with
Today’s yokai shares something in common with Hashi Hime in that also Tesso began life as a human, a buddhist monk named Raigo, but was later transformed into a vengeful yokai. Again it was sheer force of will, and a driving anger, that provde the catalyst for the transformation.
I already knew the basic story of how Raigo came to turn into his rodent form, however as Raigo’s temple (Mii-Dera) is not far from where I live, I decided to make the trip there and see if I could dig up anything connected with the myth.