The 12th ENA PLAY, which was ridiculous and ridiculous, was finished. In the 11th episode, the noise continued even though it was necessary to be more careful from the point of view of the production team because it ended with the controversy of "the editing of the devil". The 12th stage was a strange concept called 'Hey Ghost, Let's Fight', which was not a consideration of the performers' position but a setting for the viewers who were stunned. "The ideal type so far is Defcon. I'm serious." In an interview with the production team, Ok Soon, who said that Tefcon is an ideal type, has had several appearances on the show. In June 2017, he appeared as Stewardess Daughter-in-law on TV Chosun entertainment's "Daughter-in-law" and was also chosen by his mother-in-law, a photographer. In 2021, he appeared on Ji Sang-ryeol's YouTube channel and announced his job as Stewardess, and actively danced to Ji Sang-ryeol and enjoyed a drunken date. Some netizens doubted the purpose of his appearance on Solo, referring to his past career in broadcasting. Of course, it can not be asserted that he appeared in public relations just because he appeared on other broadcasts. In addition, it may be premature to judge because it has only been broadcast once, but it is enough to understand the reaction of the viewers as it has been involved in the controversy of the authenticity of the cast several times. The key question is whether the producers of Solo were aware of this in advance. Also, it is questionable why they did not disclose this fact (to viewers). Rather, the production team and Ok-sun have shared this information, and what if Ok-sun reveals her experience of appearing on the show through her self-introduction time? Rather, it could provide an opportunity for a reversal to secure sincerity. Of course, the production team may not have judged the cast's experience of appearing on the show to be information that must be disclosed, but if the noise about Ok-sun only circulates outside, it seems difficult to prevent the draft. 's success factor was the authenticity of the performers' Love (marriage). If this collapses, the position of Solo> in the flood of Love reality will be jeopardized. If the controversy over the cast continues as it is now, viewers will feel tired. Depending on what kind of appearance Ok Soon shows in the next week's broadcast, the success of the 13th will depend on how the production team copes. Also, on the 16th, an online community posted an exposition that pointed to a man who was supposed to be a performer of Solo>, and the production team is currently confirming it. Let's see how we can solve these problems.