Lee Yong-soo, a South Korean woman who was sexually enslaved by Japan's World War II military, arrives for a meeting with South Korean Foreign Minister Chung Eui-yong to call for referral of the issues regarding sexual slavery victims to the International Court of Justice (ICJ) at the Foreign Ministry in Seoul, South Korea March 3, 2021. Ahn Young-joon/Pool via REUTERS

Lee Yong-soo, a South Korean woman who was sexually enslaved by Japan's World War II military, talks to South Korean Foreign Minister Chung Eui-yong during a meeting to call for referral of the issues regarding sexual slavery victims to the International Court of Justice (ICJ) at the Foreign Ministry in Seoul, South Korea March 3, 2021. Ahn Young-joon/Pool via REUTERS

Lee Yong-soo, a South Korean woman who was sexually enslaved by Japan's World War II military, is escorted by South Korean Foreign Minister Chung Eui-yong to hold a meeting to call for referral of the issues regarding sexual slavery victims to the International Court of Justice (ICJ) at the Foreign Ministry in Seoul, South Korea March 3, 2021. Ahn Young-joon/Pool via REUTERS

Lee Yong-soo, a South Korean woman who was sexually enslaved by Japan's World War II military, is escorted by South Korean Foreign Minister Chung Eui-yong to hold a meeting to call for referral of the issues regarding sexual slavery victims to the International Court of Justice (ICJ) at the Foreign Ministry in Seoul, South Korea March 3, 2021. Ahn Young-joon/Pool via REUTERS

South Korean president Moon Jae-in (3-R) and his wife Kim Jung-Sook (2-R), attend a ceremony of the 102nd anniversary of the March 1st Independence Movement Day in Seoul, South Korea, March 1, 2021. Pool via REUTERS

South Korean President Moon Jae-in, speaks during a ceremony of the 102nd anniversary of the March 1st Independence Movement Day in Seoul, South Korea, March 1, 2021. Pool via REUTERS

South Korean President Moon Jae-in, speaks during a ceremony of the 102nd anniversary of the March 1st Independence Movement Day in Seoul, South Korea, March 1, 2021. Pool via REUTERS

South Korean president Moon Jae-in and his wife Kim Jung-Sook, give three cheers during a ceremony of the 102nd anniversary of the March 1st Independence Movement Day in Seoul, South Korea, March 1, 2021. Pool via REUTERS

South Korean president Moon Jae-in and his wife Kim Jung-Sook, attend a ceremony of the 102nd anniversary of the March 1st Independence Movement Day in Seoul, South Korea, March 1, 2021. Pool via REUTERS

South Korean President Moon Jae-in, speaks during a ceremony of the 102nd anniversary of the March 1st Independence Movement Day in Seoul, South Korea, March 1, 2021. Pool via REUTERS

Medical workers wait to receive the first dose of the Pfizer BioNTech vaccine Covid-19 at the National Medical Center vaccination center in Seoul, South Korea February 27, 2021. Song Kyung-Seok/Pool via REUTERS

Medical workers wait to receive the first dose of the Pfizer BioNTech vaccine Covid-19 at the National Medical Center vaccination center in Seoul, South Korea February 27, 2021. Song Kyung-Seok/Pool via REUTERS

A nurse fills a syringe with the Pfizer BioNTech vaccine Covid-19 at the National Medical Center vaccination center in Seoul, South Korea February 27, 2021. Song Kyung-Seok/Pool via REUTERS

Nurses prepare for the first dose of the Pfizer BioNTech vaccine Covid-19 at the National Medical Center vaccination center in Seoul, South Korea February 27, 2021. Song Kyung-Seok/Pool via REUTERS

A medical worker (L) receives the first dose of the the Pfizer BioNTech vaccine Covid-19 at the National Medical Center vaccination center in Seoul, South Korea February 27, 2021. Song Kyung-Seok/Pool via REUTERS

A nurse fills a syringe with the Pfizer BioNTech vaccine Covid-19 at the National Medical Center vaccination center in Seoul, South Korea February 27, 2021. Song Kyung-Seok/Pool via REUTERS

A nursing home worker receives the AstraZeneca COVID-19 vaccine at a healthcare centre as South Korea starts a vaccination campaign against the coronavirus disease (COVID-19), in Seoul, South Korea February 26, 2021. REUTERS/Heo Ran

A nursing home worker receives the AstraZeneca COVID-19 vaccine at a health care centre as South Korea starts a vaccination campaign against the coronavirus disease (COVID-19), in Seoul, South Korea February 26, 2021. REUTERS/Heo Ran

A nursing home worker receives the AstraZeneca COVID-19 vaccine at a health care centre as South Korea starts a vaccination campaign against the coronavirus disease (COVID-19), in Seoul, South Korea February 26, 2021. REUTERS/Heo Ran

A nursing home worker has the temperature checked by a medical staff before receiving the AstraZeneca COVID-19 vaccine at a health care centre, as South Korea starts a vaccination campaign against the coronavirus disease (COVID-19), in Seoul, South Korea February 26, 2021. REUTERS/Heo Ran

A nursing home worker receives the AstraZeneca COVID-19 vaccine at a health care centre as South Korea starts a vaccination campaign against the coronavirus disease (COVID-19), in Seoul, South Korea February 26, 2021. REUTERS/Heo Ran

A nursing home worker receives the AstraZeneca COVID-19 vaccine at a health care centre as South Korea starts a vaccination campaign against the coronavirus disease (COVID-19), in Seoul, South Korea February 26, 2021. REUTERS/Heo Ran

A nursing home worker receives the AstraZeneca COVID-19 vaccine at a health care centre as South Korea starts a vaccination campaign against the coronavirus disease (COVID-19), in Seoul, South Korea February 26, 2021. REUTERS/Heo Ran

A nursing home worker receives the AstraZeneca COVID-19 vaccine at a health care centre as South Korea starts a vaccination campaign against the coronavirus disease (COVID-19), in Seoul, South Korea February 26, 2021. REUTERS/Heo Ran

A medical staff (R) checks a nursing home worker after receiving the first dose of the AstraZeneca Covid-19 vaccine at a health care centre in Seoul on February 26, 2021, as South Korea starts coronavirus vaccination campaign. Jung Yeon-je/Pool via REUTERS

Nursing home workers take a seat after receiving the first dose of the AstraZeneca Covid-19 vaccine at a health care centre in Seoul on February 26, 2021, as South Korea starts coronavirus vaccination campaign. Jung Yeon-je/Pool via REUTERS

Nursing home workers (R) wait to receive the first dose of the AstraZeneca Covid-19 vaccine at a health care centre in Seoul on February 26, 2021, as South Korea starts coronavirus vaccination campaign. Jung Yeon-je/Pool via REUTERS

Nursing home workers wait to receive the first dose of the AstraZeneca Covid-19 vaccine at a health care centre in Seoul on February 26, 2021, as South Korea starts coronavirus vaccination campaign. Jung Yeon-je/Pool via REUTERS

A nurse fills a syringe with the AstraZeneca Covid-19 vaccine at a health care centre in Seoul on February 26, 2021, as South Korea starts coronavirus vaccination campaign. Jung Yeon-je/Pool via REUTERS

A nurse fills a syringe with the AstraZeneca Covid-19 vaccine at a health care centre in Seoul on February 26, 2021, as South Korea starts coronavirus vaccination campaign. Jung Yeon-je/Pool via REUTERS

A nurse fills a syringe with the AstraZeneca Covid-19 vaccine at a health care centre in Seoul on February 26, 2021, as South Korea starts coronavirus vaccination campaign. Jung Yeon-je/Pool via REUTERS

A nursing home worker (L) receives the first dose of the AstraZeneca Covid-19 vaccine at a health care centre in Seoul on February 26, 2021, as South Korea starts coronavirus vaccination campaign. Jung Yeon-je/Pool via REUTERS

A nursing home worker (L) receives the first dose of the AstraZeneca Covid-19 vaccine at a health care centre in Seoul on February 26, 2021, as South Korea starts coronavirus vaccination campaign. Jung Yeon-je/Pool via REUTERS

A nursing home worker (L) receives the first dose of the AstraZeneca Covid-19 vaccine at a health care centre in Seoul on February 26, 2021, as South Korea starts coronavirus vaccination campaign. Jung Yeon-je/Pool via REUTERS

A nurse prepares to administer a dose of the AstraZeneca Covid-19 vaccine at a health care centre in Seoul on February 26, 2021, as South Korea starts coronavirus vaccination campaign. Jung Yeon-je/Pool via REUTERS

A nurse prepares to administer a dose of the AstraZeneca Covid-19 vaccine at a health care centre in Seoul on February 26, 2021, as South Korea starts coronavirus vaccination campaign. Jung Yeon-je/Pool via REUTERS

People wearing masks take a walk amid the coronavirus disease (COVID-19) pandemic at a Hanriver Park in Seoul, South Korea, February 21, 2021. REUTERS/Kim Hong-Ji

A couple shares a moment at an area which is cordoned off amid the coronavirus disease (COVID-19) pandemic at a Hanriver Park in Seoul, South Korea, February 21, 2021. REUTERS/Kim Hong-Ji

A couple walks as N Seoul Tower is seen in the background, amid the coronavirus disease (COVID-19) pandemic, at the National Museum of Korea in Seoul, South Korea, February 19, 2021. REUTERS/Kim Hong-Ji

People enjoy a moment, amid the coronavirus disease (COVID-19) pandemic, at the National Museum of Korea in Seoul, South Korea, February 19, 2021. REUTERS/Kim Hong-Ji

A girl takes photographs of N Seoul Tower, amid the coronavirus disease (COVID-19) pandemic, at the National Museum of Korea in Seoul, South Korea, February 19, 2021. REUTERS/Kim Hong-Ji TPX IMAGES OF THE DAY

Workers cover the windows of a Michael Kors shop near the place of a protest against the arrest of Catalan rapper Pablo Hasel in Barcelona, Spain, February 17, 2021. REUTERS/Albert Gea

A North Korean defector and his children stand in front of a barbed wire fence near the demilitarised zone separating the two Koreas, in Paju, February 12, 2021, on the occasion of Seolnal, the Korean Lunar New Year's day. REUTERS/Kim Hong-Ji

A North Korean refugee cries after having a memorial service for his North Korean ancestors in front of a barbed wire fence near the demilitarised zone separating the two Koreas, in Paju, February 12, 2021, on the occasion of Seolnal, the Korean Lunar New Year's day. REUTERS/Kim Hong-Ji

A North Korean refugee leaves the altar for a memorial service for his North Korean ancestors, near the demilitarised zone separating the two Koreas, in Paju, February 12, 2021, on the occasion of Seolnal, the Korean Lunar New Year's day. REUTERS/Kim Hong-Ji

A couple looks toward the North on an observatory near the demilitarised zone separating the two Koreas, in Paju, February 12, 2021, on the occasion of Seolnal, the Korean Lunar New Year's day. REUTERS/Kim Hong-Ji

Hyeon Seong-taek, a North Korean refugee, looks toward the North as he sits next to an altar for a memorial service for his North Korean ancestors, in front of a barbed wire fence near the demilitarised zone separating the two Koreas, in Paju, February 12, 2021, on the occasion of Seolnal, the Korean Lunar New Year's day. REUTERS/Kim Hong-Ji

Relatives of North Korean refugees set up an altar for a memorial service for their North Korean ancestors, near the demilitarised zone separating the two Koreas, in Paju, February 12, 2021, on the occasion of Seolnal, the Korean Lunar New Year's day. REUTERS/Kim Hong-Ji

Lee Soon-ai, owner of a Korean traditional pancake house for over 15 years, makes pancakes for the Lunar New Year holidays, in Seoul, South Korea February 11, 2021. REUTERS/Minwoo Park

Lee Soon-ai, owner of a Korean traditional pancake house for over 15 years, puts meat onto skewers to sell for the Lunar New Year, in Seoul, South Korea February 11, 2021. REUTERS/Minwoo Park

Traditional Korean pancakes made of meat, fish cake, chilli and ham on a skewer, are seen in Seoul, South Korea February 11, 2021. REUTERS/Minwoo Park

Traditional Korean pancakes are seen in baskets at a pancake house in Seoul, South Korea February 11, 2021. REUTERS/Minwoo Park

A woman passes by a pancake house, in Seoul, South Korea February 11, 2021. REUTERS/Minwoo Park

Nurses take part in the coronavirus disease (COVID-19) vaccination mock drill at a first aid facility of the COVID-19 vaccination center in Seoul, South Korea, February 9, 2021. REUTERS/Kim Hong-Ji/Pool

A nurse takes part in the coronavirus disease (COVID-19) vaccination mock drill at the COVID-19 vaccination center in Seoul, South Korea, February 9, 2021. REUTERS/Kim Hong-Ji/Pool

A man waits in a reception desk area as he takes part in the coronavirus disease (COVID-19) vaccination mock drill at the COVID-19 vaccination center in Seoul, South Korea, February 9, 2021. REUTERS/Kim Hong-Ji/Pool

A general view of first aid facility of the COVID-19 vaccination center during the coronavirus disease (COVID-19) vaccination mock drill in Seoul, South Korea, February 9, 2021. REUTERS/Kim Hong-Ji/Pool

A nurse takes part in the coronavirus disease (COVID-19) vaccination mock drill at the COVID-19 vaccination center in Seoul, South Korea, February 9, 2021. REUTERS/Kim Hong-Ji/Pool

Participants take part in the coronavirus disease (COVID-19) vaccination mock drill at the COVID-19 vaccination center in Seoul, South Korea, February 9, 2021. REUTERS/Kim Hong-Ji/Pool

Participants take part in the coronavirus disease (COVID-19) vaccination mock drill at the COVID-19 vaccination center in Seoul, South Korea, February 9, 2021. REUTERS/Kim Hong-Ji/Pool