Gabunyan Hazard (Horror of Dracunyan)

Keita has not got a costume ready for the Halloween Parade, and while Kuma, Kanchi, and Fumi wait for him, he discovers his mother has become something like a vampire. Keita soon discovers that the Yo-Kai Gabunyan is to blame, and has turned the whole town into other Gabunyan. Keita gets Kuma, Kanchi, and Fumi, who have not been bitten, to help him stop Gabunyan, revealing to them that Yo-Kai exist.