Kum's paternal grandfather was dispatched to Leyte in the Philippines as a Japanese soldier. Many Koreans were enslaved as a laborer to coal mine, railroad, or any other place where required a heavy labor. Many Koreans were also drafted to the frontline of Japanese invasion during World War II.

General Douglas MacArthur re-landed onto Leyte to "liberate" the Philippines from Japanese occupation. Leyte residents suffered very much under two occupation forces, the US and Japanese. Filipino guerrillas and Americans fought against Japanese forces, who eventually experienced terrible defeat, with more than 90 percent of the soldiers dying in the battle, and many dying from starvation in the mountains.

When Kum visited the Philippines several times, she heard a story that the Korean soldiers at that time committed the cruelest atrocities than that of Japanese soldiers. Since her grandfather died long ago, she could not directly ask him what he experienced in Leyte then. Thus, Kum retraced his path.

A surprising revelation is made at the end of the film.