Jongkeun Lee was 16 years old when he survived the atomic bomb of Hiroshima. His testimony reminds us that not only Japanese people survived the atomic bombs, but thousands of Korean people were there as well. Korea was occupied by Japan at the time. Many were forced to live and work in Japan. Their experience is often erased, even now. Jongkeun's testimony is a powerful reminder of Japan's complicated history and a call to learn from that history by joining the treaty on the prohibition of nuclear weapons.