"Please Check the Event" follows the emotional journey that will unfold when two former lovers pretend to be together to head on a couple’s trip they won at an event. Park Do Kyum, the leader and vocalist of an indie band. While he seems haughty and feisty, he has a romantic side that comes out during the most important moments. Ha Song Yi, a woman with a confident and youthful charm. She works as a botanical garden coordinator and passionately believes her mother’s words that people are capable of betrayal but not plants. She finds herself struggling after breaking up with her boyfriend. Seo Ji Gang is an essay writer who chooses to be a travel guide for couples in order to observe them for his writing.As he gradually develops feelings for Ha Song Yi, the three characters will portray an unpredictable love triangle.