Storyline:

Young-Ho (Lee Dong-Wook) is a popular essay instructor. He is a power influencer, who posts about single life on social media. He receives a recommendation to write "Single in Seoul."

Hyun-Jin (Lim Soo-Jung) is a chief editor of publishing company. She is good at her work, but her dating life isn't nearly as successful. In order to publish "Single in Seoul," she meets Young-Ho.