The nation set to elect female prime minister in historic first
Over the last two decades, the country has seen more than 10 leaders.
Actually, a specialist likens taking up the nation's top job to taking a "poisoned chalice".
But why does the country frequently replace prime ministers? It's due in part of it being a "single-party system", explains Professor James Brown of Temple University Japan.
The LDP's grip on the country's politics means the main political competition comes from within the party, instead of from external parties.
"Therefore inside the LDP there are vicious struggles within different factions - they all want their own clique to secure the top job."
"Thus although you could be chosen as prime minister, the moment you're in office, you have dozens of people manoeuvring to try to get you out again."
Key Factors Behind Rapid Turnover
- One-party dominance limits outside challenges
- Internal factional rivalries drive power struggles
- The leadership role is often described as a "cursed position"
- Political stability stays elusive despite economic strength
