InuYasha and his companions are reacquainted with the elderly demon exorcist Haori, who returns and convinces them to help her exterminate an invisible demon involved in robberies. They split up into two groups, guarding the two riches estates of the town. Sango and Shippo learn from Haori to be able to temporarily shroud themselves, but they are later seen by Miroku and InuYasha, respectively. When the invisible demon raids the estate, it is found out that he can be formed as thin as paper. He is forgiven for his actions, being told never to involve himself with humans ever again.