The Seven Phantom Travelers (七人同行, Shichinin dōgyō) are a group of Shikoku yōkai who appear as travelers wearing conical straw hats. Normally they can't be seen by the human eye unless one peeks through a gap like a crow's crotch. They make up the executives of the Shikoku Hachijūhakki Yakō and encountering them is said to bring misfortune.