Kiyohiro Yamaguchi

A phantom thief queen—whose age and gender are unknown—flies around the world on an airship in search of treasure. A gemstone the queen had their sights on is stolen from them by a mysterious circus troupe, and a game soon unfolds between the queen and the troupe's magicians, hypnotists, and other members wielding special abilities.

Hirayama Jirou has lost his mother in the Great Kanto Earthquake and now runs a soba stall with his father. He decides to join the crew of the famous ocean liner Hikawa Maru and finds work cooking in the ship's galley. Through his eyes, the film explores the ship's 85-year history.