By May 06, 2021 As a precautionary measure, everyone in "Kingdom" will be undergoing self-isolation and tests after a backup dancer on the show recently tested positive for COVID-19. Keep on reading to know more. All Cast & Production Staff of Mnet's 'Kingdom' to Undergo Self-Isolation After Back-up Dancer Tested Positive for COVID-19 On May 6, KST, Mnet announced to media outlets that a backup dancer who participated in the recording for an episode of "Kingdom: Legendary War" back on May 4 was confirmed to be positive for COVID-19. According to Mnet, the production staff complied with the precautionary measures and guidelines, such as everyone answering questionnaires, checking temperature, and continuously disinfecting the areas used during the recording.