The nation set to choose female prime minister in historic first
Over the last two decades, the country has had over ten leaders.
In fact, a specialist likens taking up the country's highest office to drinking from 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 primary rivalry comes from within the party, rather than from opposition groups.
"So within the LDP there are intense conflicts within different factions - they all want their own clique to secure the top job."
"Thus although you could be selected as leader, as soon as you're in power, you have many individuals manoeuvring to try to remove you again."
Key Factors Behind Rapid Turnover
- Single-party rule limits outside challenges
- Party infighting fuel leadership contests
- The leadership role is frequently called a "cursed position"
- Government continuity stays elusive despite financial power
