For Usagi, nothing ever happens as planned, not even the mere fact of attending a duel between his former master, Katsuichi, and his rival Nakamura Koji. Even before the duel, Usagi finds himself at the heart of a dispute between Koji and a local fencing school, which pushes Koji to challenge his master. He will also discover a terrible secret, which could save the life of his master, but at the price of his own honor. This seventeenth volume of Miyamoto Usagi's adventures also presents a new story with Le Bouc Solitaire and his Little, tribute to Stan Sakai to the manga of Kazuo Koike Lone Wolf and Cub.