The controversy surrounding the security guard incident at the airport involving the rookie girl group Hearts2Hearts has resurfaced once again. This incident is raising questions not just about a simple on-site confusion, but also about the standards of artist protection within the entertainment industry and their legitimacy. Fan A claims to have suffered a prepatellar bursitis injury for four weeks due to physical restraint by the security guard and is appealing for justice, while their agency, SM Entertainment, maintains that it was an unavoidable measure for artist protection. The incident took place on the 8th at Incheon International Airport. During the process of Hearts2Hearts members departing for overseas schedules, a woman known as fan A clashed with the security guard as she attempted to board the shuttle train. The online video footage showed the security guard forcefully pushing and restraining A by her neck and face. This scene caused a great shock among fans and the general public. On the 10th, during the broadcast of JTBC’s ‘The Fact’, the host who witnessed the situation conveyed, “The security guard suddenly pushed woman A vigorously as if to suppress her.” In response, SM Entertainment officially stated on the 11th, “The sasaeng fan attempted physical contact with the members, and physical force was unavoidably used in the process of preventing this.” However, A strongly opposed this explanation and posted a lengthy message on her social media, revealing a medical diagnosis stating that she suffered a prepatellar bursitis injury for four weeks in her cervical, lumbar, upper limb, and head areas. This controversy is not the first for Hearts2Hearts. In March, a similar incident occurred at Gimpo Airport during their departure, causing public inconvenience due to the failure of on-site control and sparking a controversy over ‘airport disturbances’. At that time, there was also a physical clash between fans and security personnel, which also affected the group’s image. Experts point out that this issue cannot be simply seen as excessIVE behavior by fans or a mistake by security guards. They emphasize the need for professionalism in on-site operations to maintain physical distance between fans and artists while preventing unnecessary conflicts, as well as a method to ensure the rights of the general public in public spaces. In the aftermath of the controversy, Hearts2Hearts and SM Entertainment are in a situation that demands a more refined communication strategy to restore trust with fans. Transparent investigation and follow-up measures are essential to avoid criticism of overreaction. It seems necessary to review and improve on-site security manuals to prevent similar incidents from happening in the future.