The nation on course to choose woman prime minister in landmark first
Over the last two decades, the country has had over ten leaders.
In fact, a specialist compares taking up the country's highest office to taking a "cursed cup".
However, what is the reason does Japan keep changing leaders? This is partly because of it being a "one-party democracy", explains Professor James Brown of Temple University Japan.
The Liberal Democratic Party's control on the political landscape means the main political competition comes from within the party, rather than from external parties.
"Therefore inside the LDP there are intense conflicts within various groups - they all want their own faction to secure the top job."
"So even though you could be chosen as prime minister, as soon as you're in power, you have dozens of people manoeuvring to try to get you out again."
Key Factors Behind Frequent Changes
- Single-party rule restricts outside challenges
- Internal factional rivalries drive power struggles
- The leadership role is frequently called a "poisoned chalice"
- Government continuity stays difficult to achieve despite economic strength
