Documentary focuses on Sona, the daughter of the director’s brother who moved to North Korea from Japan in the early 1970s. Through Sona, the film shows the generation that migrated from Japan to North Korea and their offspring who were born and raised in North Korea.
| Directing | Yang Yong-hi | Director |
| Production | Kim Jung-gon | Producer |
| Editing | Baekho JJ | Editor |
| Production | Baekho JJ | Production Supervisor |
| Production | Choi Hyun-mook | Executive Producer |
| Writing | Yang Yong-hi | Writer |
| Camera | Yang Yong-hi | Director of Photography |
