Otohime's terrifying plot that involves all of Edo finally enters its final stage. Gintoki, Katsura, Shinpachi, Kagura and the others make every effort to stop her plans… How will this battle end? And what will be the fate of Earth?!
Their will is as strong and straight
as a sword and will never break.
Son firmes como una espada
 que no se quebranta.
A força de vontade deles
 é forte e indestrutível.