The Medicine Seller takes a journey on a merchant's luxurious ship, but before long the craft is diverted into the Dragon's Triangle, an area of the sea infested with ghosts.

The Medicine Seller tries to find out who diverted the ship and why, as the crew is terrorised by a ghost who forces them to reveal their deepest fears.

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.