After Red Velvet's disbandment, Seulgi decides to move to England and becomes one of the most popular fashion designers in the country. One day, she gets an offer to design the stage outfits for a very popular Korean boy group during their Britain tour. Little did she know that she would be styling her ex-boyfriend, Lee Taeyong - Who she, by the way, still has feelings for. 

Jaebum is anxious for the upcoming comeback but Jackson know's just the right words to get through to him.