Since the 1990s, Yoon has been a leader of the Korean Council for the Women Drafted for Military Sexual Slavery by Japan, now called the Korean Council for Justice and Remembrance for the Issues of Military Sexual Slavery by Japan. The organization was established in 1990 to advocate for the rights of former comfort women. Since January 1992, the council has organized over 1000 weekly rallies in front of the Japanese embassy in Seoul to raise awareness of the issue of war violence against women. The group has called upon the Japanese government to issue a formal apology and compensation to former comfort women. Yoon's book on the subject, 20 Years of Wednesdays: The Unshakable Hope of the Halmoni - Former Japanese Military Comfort Women, was published in 2010 in Korean, and translated into Japanese the following year. A 2016 follow-up, 25 Years of Wednesdays , included information on the new agreement between the Korean and Japanese governments to peacefully resolve the issue. An English translation by Koeun Lee was published in 2019. Yoon established the War and Women's Human Rights Museum in Seoul in 2012. She has also served as a founding member of the Korea Women's Foundation and as executive director of the Women's Subcommittee of the National Reunification Movement. Yoon appears in The Apology, a documentary film directed by Tiffany Hsiung and featuring former comfort women Gil Won-Ok, Adela Reyes Barroquillo, and Cao Hei Mao.
In May 2020, Lee Yong-soo, a 91 year old comfort woman survivor, accused Yoon of not using the public donations to benefit the comfort women victims. In a press conference, Lee Yong-soo accused Yoon and her organization of financially and politically exploiting the survivors for 30 years. Lee also stated that Yoon “must not become a member of the National Assembly. She must first solve this problem.” Lee stated she did not support Yoon's parliamentary candidacy and accused Yoon of lying about having her support during the election. As a result, the Korean Prosecutor-General, Yoon Seok-youl, ordered an investigation into the Korean Council for Justice and Remembrance for the allegations of financial fraud and embezzlement. Cho Hae-jin, a lawmaker from the United Future Party, raised the issue that Yoon may have been using donations meant for the comfort women for personal purposes, while other lawmakers have called on her to resign from her seat.
Awards and honours
In 2012, Yoon was awarded the 9th annual Seoul Women's Award. In 2013, Yoon was awarded the Late Spring Unification Award, given to individuals who have contributed to national reconciliation and reunification. The same year, she was named a co-winner of Hanshin University's Hanshin Prize, given to individuals for their outstanding contributions to society.
