The nation set to elect female prime minister in historic first
Over the last two decades, the country has had over ten prime ministers.
Actually, one expert likens taking up the nation's highest office to taking a "cursed cup".
But why does the country keep changing prime ministers? It's due in part of it being a "single-party system", says 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.
"Therefore inside the LDP there are intense conflicts within various groups - they all want their own faction to get the top job."
"So even though you might be selected as leader, the moment you're in office, you have dozens of people scheming to try to remove you again."
Key Factors Behind Rapid Turnover
- Single-party rule restricts outside challenges
- Internal factional rivalries fuel leadership contests
- The prime minister's position is often described as a "poisoned chalice"
- Government continuity remains elusive despite financial power
