Josephine is currently a trainee under SM Entertainment and is also a member of the soon-to-debut pop idol group, Double, which she is the lead vocalist and lead dancer. One day, Lee Soo Man announced that SHINee and Double would be collaborating on an album which would be Double’s debut album. SHINee and Double do not share a close relationship with each other despite being in the same company as they only see each other occasionally. SHINee and Double’s members met and got to know one another. Their first collaboration song, titled Lovely girl, consist of a dance for the idol groups, which they would be paired up with the opposite gender. Josephine’s partner is Taemin, who has a crush on Josephine since the first day he saw her dancing in the studio. He was attracted to Josephine’s passion for dancing. How would Taemin’s crush proceed on? Would Taemin’s feelings be returned or hurt him instead?