Gintoki and Nizo battle to the death on the deck of Takasugi's ship. The anti-battleship weapon Benizakura has infiltrated Nizo's mind, driving Nizo out of control. Gintoki fights back with a sword forged by Tetsuko. Nizo attacks with overwhelming strength, but slowly, the battle begins to turn in Gintoki's favor. Meanwhile, within the ship, Takasugi plans to use the Benizakura to overthrow the shogunate, but he is confronted by Tetsuya, the man who forged the Benizakura, Tetsuya's younger sister Tetsuko, and Katsura.
When I look at you, all I see is someone who can't sheathe his sword.
Cuando te miro, solo veo a alguien 
incapaz de envainar su espada.
Quando eu olho você, só vejo uma pessoa 
incapaz de guardar sua espada.