With Tomoko Yoshino's second term as president of the Japanese Trade Union Confederation, the umbrella organization for labor unions in the country, set to end next month, all eyes are on whether she will stay on or step down.

Under Yoshino, the organization, better known as Rengo, has cooperated with the government to achieve noticeable wage increases. But some have raised concerns about Rengo's close government ties.

July's election for the House of Councilors, the upper chamber of parliament, highlighted a decline in Rengo's ability to gather votes, signaling the organization's waning influence.