Ten2 Entertainment, the agency, said on the 25th, "Actor Eum Moon-Seok has launched a music video support shoot for the title song "Two Letters" of Hwang Chi-yeol's new mini-album "Be My Reason." We recently finished filming in a bright and pleasant atmosphere.

Hwang Chi-yeol and Eum Moon-Seok drew attention in the music video still cut, which was released along with the news of their appearance, as they posed with their shoulders affectionately. Also, a photo of the two sitting in front of the bathhouse and eating banana milk was released, raising questions about the music video.

Eum Moon-Seok's appearance was made with a special loyalty to Hwang Chi-yeol, who is known as his close friend. Eum Moon-Seok and Hwang Chi-yeol were introduced as real best friends who met almost every day on SBS' "My Ugly Baby," which aired earlier this year and revealed their extraordinary friendship, saying it is a precious relationship that supports each other.