The nation set to choose woman prime minister in historic first
Over the last two decades, Japan has seen more than 10 prime ministers.
In fact, a specialist compares assuming the nation's top job to drinking from a "cursed cup".
However, what is the reason does the country keep changing prime ministers? This is partly because of it being a "single-party system", explains Prof James Brown of Temple University in Japan.
The LDP's grip on the country's politics means the main political competition comes from inside the party, instead of from external parties.
"Therefore inside the LDP there are vicious struggles within various groups - they all desire their own faction to secure the leadership position."
"Thus although you could be chosen as leader, as soon as you're in office, you have many individuals scheming to try to remove you again."
Key Factors Behind Rapid Turnover
- One-party dominance limits outside challenges
- Party infighting fuel power struggles
- The leadership role is often described as a "poisoned chalice"
- Political stability stays elusive despite economic strength
