Season 1 of Check Out the Event premiered on August 14, 2021.

Cheerful and lovable Song Yi, who is frank about her feelings, believed in her mother’s words that the plants never betray you, unlike people, and became a botanical garden curator. However, as her boyfriend Do Kyum who was her everything dumps her, she couldn't live proudly anymore and becomes lethargic. Do Kyum who is feisty and self-respecting is a vocalist of an indie music band. As his crew was getting reputation, he suddenly announces its disband and asks Song Yi for a breakup. When Song Yi continuously tries to win Do Kyum’s heart back but keeps failing, she wins a ticket to Jeju Island through a competitive rate 500:1 and decides to take Do Kyum with her. Will this trip make any difference between the two?