Naruto Uzumaki, Kakashi Hatake, Sakura Haruno, and Rock Lee are assigned to protect the prince of the Land of the Moon, Michiru, during his world trip; other escorts had been hired, but quit due to being treated poorly. The Land of the Moon is a very wealthy nation, so Michiru tends to buy whatever he wants, and has a very materialistic worldview. His Hikaru, also acts in much the same manner.
Set in the beginning of the 20th century Japan, the film follows the bright and eccentric Kenji from his late student years through his adulthood. Kenji suffers the tragedy of being an artist whose art isn't recognized during his lifetime. Based on the life of the author Kenji Miyazawa, the film depicts his brief but intense existence.