The film modelled the protagonist after North Korean woman Sŏ Hyesuk, who, according to the North Korean periodical "Tongil sinbo", is widely known as the "maternal hero" for the Songun era. Sŏ, a resident of Sŏn'guja-dong,
Mangyongdae-guyok, Pyongyang, is known to have raised 33 orphans as if they were her own and sent 15 of them to the military.{{cite web|url=https://www.dailynk.com/%E5%8C%97%EC%84%9C-%EA%B3%A0%EC%95%84-%EC%9E%85%EC%96%91%EC%A0%95%EC%8B%A0-%EB%9D%84%EC%9A%B0%EA%B8%B0/|date=2005-01-09|title=北서 고아 입양정신 '띄우기' ==Plot==