The nation on course to choose female prime minister in landmark first
In the past twenty years, the country has seen more than 10 leaders.
In fact, one expert likens assuming the nation's highest office to taking a "cursed cup".
However, what is the reason does Japan frequently replace prime ministers? It's due in part of it being a "one-party democracy", says Professor James Brown of Temple University in Japan.
The Liberal Democratic Party's control on the country's politics means the main political competition originates inside the party, rather than from external parties.
"Therefore inside the LDP there are intense conflicts within various groups - they all desire their own faction to get the leadership position."
"So even though you might be chosen as leader, the moment you're in power, you have many individuals manoeuvring to try to get you out again."
Key Factors Behind Frequent Changes
- One-party dominance limits external competition
- Party infighting fuel power struggles
- The prime minister's position is often described as a "cursed position"
- Government continuity remains elusive despite financial power