Ju Jin-mo

Hanna, an overweight lip-sync artist who ghost sings for Ammy, a known pop diva, secretly likes Han Sang-jun. When Ammy humiliates Hanna in Han's presence, Hanna decides to undergo a cosmetic surgery.

In 1375, China was in chaos between Yuan Dynasty and Ming Dynasty. Coryo (an ancient kingdom of Korea then) sent a delegation of many diplomats, soldiers and a silent slave to make peace with the new Chinese government. However, this delegation got charged as spies and sent in exile to a remote desert.