Production
In 2019, the Hong Sisters began developing the project alongside director Park Jun-hwa. By December 5 of that year, the series was in development for tvN under the working title I saram tongyeogi doenayo? (이 사람 통역이 되나요?; 'Can this person interpret?'). The project was later renamed Guwonui tongyeok (구원의 통역; 'Interpretation of salvation'), with overseas filming scheduled in China, however it was canceled due to the COVID-19. The Hong Sisters and Park subsequently pivoted to collaborate on a different tvN drama, Alchemy of Souls.



