Seunghyun, the nervous new intern, adapts to his work with the help of his boss, Kim Jongchan. Jongchan is impressed by Seunghyun's ideas for a new ad, and they decide to create the ad together, taking Seunghyun to a meeting. Seunghyun also unexpectedly encounters Na Yoo Seong, his college crush, who is friends with Jongchan.