About 10 teeth and 4 buttons were discovered within one day of excavation at the Seongam Academy in Danwon-gu, Ansan-si, Gyeonggi-do, where violations of children's human rights were committed until the 1980s.

Previously, the Past History Reconciliation Committee for the second period of truth and reconciliation entered a prospecting site at the burial site of the remains on the 26th.

In December 2020, many of the 190 survivors who applied for truth to the Truth and Reconciliation Committee designated it as a dark burial site, and it is estimated that 150 remains were buried.