Arrival of New Women

It's the title of a book I recently read. What did "New Women" mean in those days? They were neither female students, virtuous ladies, nor courtesans, but they roamed the streets of the city of Keijo.

Na Hye-seok, Choi Seung-hee, Cheon Kyeong-ja, Park Rae-hyun, and many others...
Their beautiful yet sorrowful lives as they engaged in various fields.

What does the modern-day New Woman look like now?