GeumSook is a single mom, who has escaped from North Korea and has settled down in South Korea. However GeumSook is always overwhelmed by the harsh stares of people around her and by the burden that she has to nurture her daughter, SoonMi who is just 100 days old by herself. One day, GeumSook left SoonMi alone and set out on a trip with her friend. However, she had her purse stolen and wandered here and there in a strange city alone.