In the past twenty years, the country has seen more than 10 leaders.
Actually, one expert compares assuming the country's top job to drinking from a "poisoned chalice".
However, what is the reason does Japan keep changing prime ministers? It's due in part of it being a "single-party system", explains Professor James Brown of Temple University in Japan.
The Liberal Democratic Party's control on the country's politics means the primary rivalry originates within the party, rather than from external parties.
"Therefore inside the LDP there are intense conflicts within various groups - they all want their own clique to get the leadership position."
"So even though you might be chosen as prime minister, the moment you're in power, you have dozens of people scheming to try to get you out again."
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