Jung Hyun-ho is an average office worker who is infatuated with his team leader, Seo Doha, also known as Mr. Seo. Despite confessing his love, Mr. Seo remains strictly professional and pays no attention to Hyun-ho's romantic advances. Frustrated and unable to resist his feelings, Hyun-ho purchases a unique adult toy with intriguing instructions. Filled with a mix of excitement and guilt, he begins to indulge in his fantasies, imagining what it would be like to be intimate with his boss. However, at that very moment, a peculiar and unexpected event unfolds, causing a ripple effect on both Hyun-ho and Mr. Seo's lives in ways they could never have imagined.