The film revolves around the love story of a young couple who have been close to each other since childhood. For some reason, the two had to be separated and only to meet again after many years.
When growing up, Shin Joon Young (played by Kim Woo Bin) is now a famous star, with an overbearing, arrogant personality. Meanwhile, No Eul (played by Bae Suzy) from a shy little girl has become a documentary film producer with a strong personality.
Noh Eul had a difficult childhood. Her father died in an accident that caused Noh Eul to drop out of school and make a living for herself and her brother. Events made her become more valued for money than justice, always trying to maintain relationships with people stronger than her. And Shin Joon-young already has a plan for his life. His mother wanted him to be a prosecutor to follow in the footsteps of his estranged father, but an incident happened that caused him to drop out of law school and become a singer-actor.
Later, the two met regularly for work. However, they kept fighting and fighting, and over time they gradually developed feelings for each other.
The film marks the return of two young actors after a 3-year hiatus on the small screen.
Kim Woo-bin (born Kim Hyun-joong  on July 16, 1989) is a South Korean model and actor. He started his career as a catwalk model and made his debut as an actor in the television drama White Christmas. Subsequently, he gained attention in A Gentleman's Dignity (2012), and made his breakthrough with School 2013 (2012-2013) and The Heirs (2013). Kim later starred in the blockbusters Friend: The Great Legacy (2013), The Con Artists (2014) and Twenty (2015). In 2016, he took his first leading role on television in Incontrollably Fond.
Bae Su-ji (born October 10, 1994), better known by her stage name Suzy, is a South Korean singer and actress. She was a member of the South Korean girl group miss A, which debuted under JYP Entertainment along with AQ Entertainment in 2010. Suzy is considered the prettiest idol in K-pop, receiving the title "Nation's First Love."