Tanjiro and his party head to the brothel where goblins live, along with Uzui Tengen, the 'sound pillar'.
There, Tengen's wife, Seth, a female ninja, had lost contact while gathering information.
To investigate this, Tanjiro and his group disguise themselves as women and go undercover, but are unable to find out the whereabouts of the goblin.
Meanwhile, the Oirans are under the clutches of a goblin!! Will Tanjiro and his friends be able to find the goblin?!