My Only Love Song (TV Series)

Soo-jung (Gong Seung-yeon) is a conceited pop star who believes that status and money can get you anywhere. She accidentally falls into a time-slip portal and travels to the past, where she meets On-dal (Lee Jong-hyun), a man who loves money and will do anything to earn it. However, he has a soft spot for the weak and helpless, and gives to them with a generous heart.