Last Sight of Heung-Nam

A North Korean soldier is severely wounded. He surrenders and is rescued by the South. The North Korean soldier surrendered to meet his father in the South. The soldier's last name is Han. He is 31 years old. His hometown is Heungnam. With those words, the soldier falls into unconsciousness. Meanwhile, the Heungnam Refugees Association sets out to find the father. They find three possible matches.