After the intrigues of the factions, the representative of the Minzou Party, Muto Yasuyama (played by Kenichi Endo), was finally elected as the 100th Prime Minister of Japan. Muto is stubborn and tough. In sharp contrast, his son Sho (played by Masaki Suda), who is in college, is an absolute fool. One day, the father and son in different places suddenly suffered an incredible feeling, and then their souls were exchanged. In order to ensure the normal operation of the government, Sho was dragged to the position of Prime Minister by his father and his aide Kaihara Shigehei (played by Issey Takahashi). He was trembling and had no dignity. He made jokes in front of politicians and the people of the country one after another. However, this alternative Prime Minister seems to lead the story in a more interesting direction... This film is adapted from the original work of the same name by Jun Ikeido.