Nate has not got a costume ready for the Halloween Parade, and while Bear, Eddie, and Katie wait for him, he and his Yo-kai companions discover his mother has become something like a vampire. Nate soon discovers that the Yo-kai Dracunyan is to blame, and has turned the whole town into other Dracunyan. Nate gets Bear, Eddie, and Katie, who have not been bitten, to help him stop Dracunyan, telling them about the existence of Yo-kai.