They have already met several times but they never spoke together. Jessica Jung, lead vocalist of SNSD will have to do a duet with someone she didn't know at a concert with groups of Kpop very popular.
What makes this duo so special? What will happen if two other people had also wanted to do this duet with the young woman?

Main characters:

Jessica Jung

SNSD Main vocal

Moon Junyoung

ZE:A Leader

Heechul Jung

ZE:A Rapper