The Best Hit is about the tumultuous lives of contemporary twenty somethings, as they worry and learn how to connect with people, how to love, and how to succeed in this harsh world.

Yoo Hyun Jae is a member of a popular idol group. He has a lot of fans and he is a scandal maker. Meanwhile, Lee Ji Hoon is an aspiring singer. He pretends to be studying for his civil servant exam, but he is actually struggling to become an idol.