After the battle with the Ganon Empire, YAT lost Jumbo but returned safely to Earth. With a new Jumbo, space travel resumes under the guidance of Monica, the new tour conductor who replaces Katsura! However, the piloting and the positioning seem to be unstable as usual...!? This is the final volume of the series, including two original comics by Nishikawa Shinji, "YAT Resuming! Space Travel" and "The Great Reintegration Plan of the Three Idiots"!!