On August 20, 2018, the film received an 18 rating from the Korea Media Rating Board. Replying to media, the film's production company stated that the film did not contain 'such strong' restricted content (such as violence and gore), and they believed that it is milder than two other 2018 released films
Believer (2018) and
The Witch: Part 1 - The Subversion (2018), which both received age 15-rating. As such, the film was re-edited and re-submitted to the board for a "age 15-rating", with no change in its release schedule. The film eventually was released under a age 15-rating, after approximately 2 minutes worth of content were shaved off from the original cut.