| Yoona-939 | |
| Novel | |
| Appears | Chapter 5 |
| Relationships | Sonmi-451, friend |
| Film | |
| |
| Appears | An Orison of Sonmi-451 |
| Actor | Zhou Xun |
| Relationships | Sonmi-451, friend |
| Character | |
Yoona-939 is a fabricant who worked at Papa Song's, a futuristic fast food chain. She becomes aware of the outside world when she finds items left behind by customers of the establishment. She passes this knowledge on to Sonmi-451.
Later, Yoona-939 was terminated when trying to escape from Papa Song's dinery.