With the help of Muzie, Master Yoo and the members create the song for the commercial. Sang Yun is a bit daunted after hearing Seong Jae and Seung Gi sing. Nevertheless, the song is complete, and all that's left is the video. Master Yoo also shows a different side of himself while introducing his family. He shares a special way he spends time with his son and surprises the members. (Source: Viu)