The Medicine Seller checks into the last room of a traditional inn, just as a pregnant woman named Shino desperately asks for shelter.

She is given a secret room - a room possessed by a group of ghosts.

Genkei the monk explains what happened to him when he was younger as the Medicine Seller inspects the submerged craft thrown up by the seamonster.

The Medicine Seller unmasks the masked creature while revealing the life of Ochou, the enslaved housewife.

The Medicine Seller unravels the mystery and finds the truth behind the passenger's stories.