Edo faces an invading army with its government barely functioning, its Shogun missing, and the Yorozuya nowhere to be found. An assault on the O-Edo Central Terminal opens the final battle to reclaim the samurai’s homeland. Claiming to free the people from Tendoshuu rule, the Altana Liberation Army instead plunders the city.
Behind the war is Utsuro, the immortal leader of the Naraku, whose past and true objective emerge after the battle on Rakuyou. His corruption of several planets’ Altana reserves has drawn the Liberation Army, the Tendoshuu’s greatest enemy, into action. With Earth now the war’s principal battlefield, his scheme to destroy both the planet and himself is close to fruition.
Caught between the opposing forces, Gintoki, Kagura, Shinpachi, and Shouyou Yoshida’s former students must overcome their differences and bring their allies together to defend what matters to them.
