Gintama Kanketsu-hen: Yorozuya yo Eien Nare (Light Novel)

5 years have passed, and not only has the land of Edo changed into an apocalyptic wasteland, but Kagura has changed into a beautiful woman with no Chinese speech pattern, Shinpachi has turned into a cool samurai who is not a tsukkomi anymore, and the Gintoki of this time has gone missing, though he is assumed to be dead. Gintoki is determined to find out the truth of the deadly sickness that is ravaging Edo, and also to understand the feelings of Kagura and Shinpachi, who have been trying to deal with their leader's disappearance.