● The film is Lee Mi Yeon's first return to the big screen after five years of "The Lovers Beyond the Shoulder". Guo Daoyuan said publicly: "I decided to star in this film because of Lee Mi Yeon."
● During the filming of the film, 소지섭; So Ji Sub was too deeply involved in the movie, and even thought of retiring.
● In "Ghost" and "A Company Man", 소지섭; So Ji Sub all appeared in suits and leather shoes. He told the media that he was actually used to being casual and didn't like such a serious look and appearance, especially that one. The tie made him feel suffocated.
● 소지섭; So Ji Sub started special training two months before the filming started, and practiced the action scenes repeatedly according to the video data provided by Wuzhi.
● 소지섭; So Ji Sub's opponents in the film are not only men, but also women. Fighting against actresses shirtless, and the kind of rotten skinny fights, makes it difficult for him to accept the role of affectionate men. 소지섭; So Ji Sub summed up his feelings at the time as "I have never wanted to escape from the set so much."
