Japan has now warned its citizens in China to be careful of their surroundings and to avoid big crowds amid a diplomatic row over Prime Minister Sanae Takaichi’s comments on Taiwan.

The diplomatic row over comments on Taiwan has evolved from a war of words to Beijing advising its citizens against travelling and studying abroad in Japan.

A Japan ruling-party panel consisting of lawmakers close to Prime Minister Sanae Takaichi proposed on Tuesday compiling a supplementary budget exceeding 25 trillion yen ($161 billion) to fund the premier's planned stimulus package.

Takaichi this month became the first sitting Japanese leader in decades to publicly link a Taiwan Strait crisis with the possible deployment of Japanese troops, prompting Beijing to unleash a flurry of economic reprisals and threats of more retribution.

Japan ranks low in gender equality among developed nations. The first woman to lead the country is an ultraconservative who cites Margaret Thatcher as a role model. She also loves heavy metal.

Regarding population decline, the coalition agreement between the ruling Liberal Democratic Party and Nippon Ishin (the Japan Innovation Party) specified the establishment of a "population decline countermeasures headquarters" during the current Diet session to "consider and implement strong measures against the shrinking population."

Bank of Japan Governor Kazuo Ueda will hold his first bilateral meeting with new Prime Minister Sanae Takaichi on Tuesday, a closely watched event that may provide hints on how soon the central bank will resume its rate-hike cycle.

The Japanese leader only sleeps two to four hours a night—and has personally pledged to ditch work-life balance in favor of “work, work, work.”