Nathan Adams, the once-ordinary elementary school student, was given the Yo-Kai Watch by the friendly butler yo-kai Whisper, and now he and all his friends work together to have fun and investigate yo-kai incidents. When Doctor Hughly takes the blame for a rocket engineering accident, he leaves his research institute, leaving Nathan, Whipser, and their friends to try to complete his rocket project.

Printed Manga-style; book opens from left to right. Pages are read from right to left. "Original Japanese edition published by Shogakukan"--Copyright page. Translation of: Yokai wotchi.