It's Woo Seung Hyun's first day of internship. He met his superior Kim Jong Chan, who is handsome yet strict and scary. He also met Lee Kang Hae, a fellow intern who taught him on what he's supposed to do there.
Seung Hyun unexpectedly met Na Yoo Seong at the office, his crush in college, who's surprisingly friends with Kim Jong Chan. At work Seung Hyun impressed his boss with his idea for an ad, that he took Seung Hyun to a meeting.