In the past twenty years, the country has seen over ten leaders.
In fact, a specialist likens taking up the country's top job to drinking from a "poisoned chalice".
But why does Japan keep changing prime ministers? This is partly because of it being a "single-party system", explains Prof James Brown of Temple University in Japan.
The Liberal Democratic Party's control on the country's politics means the primary rivalry comes from inside the party, instead of from opposition groups.
"So within the LDP there are vicious struggles within different factions - they all want their own faction to secure the top job."
"Thus although you could be chosen as leader, as soon as you're in office, you have dozens of people manoeuvring to try to get you out again."
Lena Hoffmann is a seasoned journalist with a passion for uncovering stories that matter, specializing in German current affairs and digital media trends.
