Minjmaa, a medical student who takes care of her mother after she dies, moves to the city with her younger sister, and meets her neighbor's 6-year-old daughter, Nomin. Nomin, who is more intelligent than the other children, occasionally says that she has another home, which surprises Minjmaa and her younger sister, Galaa 2. After her mother takes Nomin away in tears, Minjmaa goes to the police to report that a child may have been kidnapped in the neighboring house. Hadkhuu, a repairman, and Alimaa, a nurse, are a harmonious young family, but Alimaa is troubled by the fact that Nomin always talks about having another home. When they occasionally show their daughter to their neighbor Minjmaa, Nomin tells Minjmaa her secret and asks her to take her to her old home, the story unfolds.