The new director, Choo Sangmee embarked on film production with the North Korean war orphaned in Poland during the Korean War. Opening audition for selection of supporting actor for students of alternative school in North Korea and casting clay in role of Oksoon. The two women are on a research trip together to Poland for the film. Song is also the subject of research and research on Choo to coach Choo. Choo supervises to understand the youth of North Korea through the Song, and seeks to express her own experiences.