"Best Hit" is a youth love drama series broadcasted by KBS TV in South Korea on June 2, 2017. It is directed by Liu Haozhen and Cha Tae-hyun, written by Li Yingzhe, and starred by Yoon Shi-yoon, Lee Se-young, Kim Min-jae, Cha Tae-hyun, etc. The drama mainly tells the story of modern young people who grow up after experiencing troubles. Cha Tae-hyun plays the role of Lee Kwang-jae, who was once a popular idol agent and is now the president of an unknown economic company. He is the central figure in the drama. Yoon Shi-yoon will play a member of the singing and dancing group J2, who has super popularity and constant scandals. Lee Se-young plays the female lead, a hot-tempered civil servant exam candidate. Kim Min-jae will play a volunteer who dreams of becoming a singer in the drama. Under the appearance of a civil servant exam, he is actually working hard to realize his dream of becoming a singer. Yoon Sun-ha plays the role of Hong Bo-hee, a popular singer who used to be a youth fairy in the play, and is also the woman that Cha Tae-hyun has a crush on.