Senior diplomats from Korea and Japan are in their second round of talks this Thursday afternoon on Japan's wartime sexual enslavement.
Seoul's foreign ministry says it'll focus on proving the so-called "comfort women" were forced into sexual servitude and were not, as some in Japan claim, working as prostitutes.
Not much progress was made at their first meeting in Seoul last month.
The Korean government intends to use letters released by the Chinese government in March that prove the women were forced to work in Japanese military brothels.
More than 200-thousand women, mostly Korean, were forced to serve Japanese troops in the early 20th century.
Tokyo claims the issue was settled through a 1965 treaty when the two countries normalized diplomatic ties.
There are concerns Japan might want to focus more on other issues during today's talks, like Korea's import restrictions on Japanese fisheries or Tokyo's moves to boost its military presence.