The TV series will comically tell the love story between a poor girl and a genius musician.
At the event, Jung boasted a slim body line in a tight black leather dress. While she seemed to pursue a simple one-color style, she paired it with a glamorous pair of heels decorated in fluorescent colors.
Ji mixed casual wear and a semi-formal look. The unique design of the jacket created an air of chicness.
The KBS drama will kick off on Monday.