Na Hyeseok was a Korean feminist, poet, writer, painter, educator, and journalist. Her pen name was Jeongwol. She was a pioneering Korean feminist writer and painter. She was the first female professional painter and the first feminist writer in Korea. She created some of the earliest Western-style paintings in Korea, and published feminist novels and short stories. She became well known as a feminist with her criticism against the marital institution in the early 20th century.