The Government of Japan operates as a constitutional monarchy, where the Emperor serves as the ceremonial head of state. The real political power lies with the Prime Minister and the National Diet, which is Japan's bicameral legislature, consisting of the House of Representatives and the House of Councillors. Japan's government is characterized by a multi-party system, with the Liberal Democratic Party being the dominant political party. The government is responsible for creating laws, managing public services, and ensuring national security, while also promoting economic growth and social welfare for its citizens.