After opening a mysterious door, Nate encounters all sorts of strange, new Yo-kai from the past, present, and future. As the Yo-kai battle to determine which of them is the strongest, Nate and his friends venture deeper into their strange world.

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. Previous volumes included a part title. This volume has no part title.