Sanae Takaichi, 64, admires former British Prime Minister Margaret Thatcher and is a proponent of former Prime Minister Shinzo Abe’s conservative vision for Japan.

Takaichi is the first female president of Japan’s predominantly male ruling party that has dominated Japan’s postwar politics almost without interruption.

Women comprise only about 15 per cent of Japan’s lower house, the more powerful of the two parliamentary chambers. Only two of Japan’s 47 prefectural governors are women.

A drummer in a heavy-metal band and a motorbike rider as a student, Takaichi has called for a stronger military, more fiscal spending for growth, promotion of nuclear fusion, cybersecurity and tougher policies on immigration.

She vowed to drastically increase female ministers in her government. But experts say she might actually set back women’s advancement because as leader she would have to show loyalty to influential male heavyweights. If not, she risks a short-lived leadership.

Takaichi has backed financial support for women’s health and fertility treatment as part of the LDP policy of having women serve in their traditional roles of being good mothers and wives. But she also recently acknowledged her struggles with menopausal symptoms and stressed the need to educate men about female health to help women at school and work.

Takaichi supports the imperial family’s male-only succession, opposes same-sex marriage and a revision to the 19th-century civil law that would allow separate surnames for married couples so that women don’t get pressured into abandoning theirs.

She is a wartime history revisionist and China hawk. She regularly visits Yasukuni Shrine, which Japan’s neighbours consider a symbol of militarism, though she has declined to say what she would do as prime minister.

Political watchers say her revisionist views of Japan’s wartime history may complicate ties with Beijing and Seoul.

Her hawkish stance is also a worry for the LDP’s longtime partnership with Komeito, a Buddhist-backed moderate party. While she has said the current coalition is crucial for her party, she says she is open to working with far-right groups.