Fan plays Trieu Linh, who responds to a marriage proposal by recounting her past work in a telephone-fraud operation. The actress said the story's mixture of realism and the fantastical attracted her.
She described the challenge as conveying emotions that remain internal. Rather than emphasizing suffering alone, she wanted the character to retain strength after difficult experiences.
Another film featuring her, Diary of a Mad Old Man, was also selected for Busan. Fan said she remains open to both features and shorts when the character and creators interest her.