A samurai salamander, looking for his lost honor, decides to commit Harakiri. But in order to have an honorable death, he has to do it under the roof of the Shogun's house Swallen-Cheeks. Something terrible will bring the fighting spirit of the Gaijin salamander back: an invasion, a vengeance and a war between the last samurai frogs and the lizards coming from West to take control of the throne and the whole Rising Sun country.