日本の国家元首は総理大臣？
The Government runs under the framework established by the Constitution of Japan, adopted in 1947. It is a unitary state, containing forty-seven administrative divisions, with the Emperor as its head of state. His role is ceremonial and he has no powers related to Government. Instead, it is the Cabinet, comprising the Ministers of State and the Prime Minister, that directs and controls the Government. The Cabinet is the source of power of the Executive branch, and is formed by the Prime Minister, who is the head of government. He or she is designated by the National Diet and appointed to office by the Emperor.
no