How to Use Guys with Secret Tips is a South Korean romantic comedy film that follows the story of a struggling assistant director named Choi Bo-na. Bo-na is constantly overlooked and mistreated at work, until she discovers a mysterious self-help book titled "How to Use Guys with Secret Tips".
As she follows the book's advice on how to manipulate men, Bo-na's life takes a dramatic turn. She becomes more confident and successful in her career, but soon realizes that the book's teachings may not lead to true happiness.
Throughout the film, Bo-na navigates the challenges of love and self-discovery, ultimately learning that authenticity and self-acceptance are the keys to finding true fulfillment.