In the bustling city of Seoul, a young woman named Ah-Reum leads a simple life working as a barista. Her world is turned upside down when she discovers she's the long-lost heiress to a powerful conglomerate. Suddenly, she's thrust into a life of luxury and secrets.Ah-Reum struggles to adapt to her new reality, torn between her humble roots and the glamorous world she's now a part of. As she navigates the complexities of her newfound identity, she meets Seo-Hyun, a charming and mysterious CEO who harbors a secret of his own.Seo-Hyun is drawn to Ah-Reum's genuine and kindhearted nature, but he's also wary of her involvement in his company's affairs. As they spend more time together, their feelings for each other grow, but they must overcome numerous obstacles, including the scheming family members who are determined to protect their own interests.Together, Ah-Reum and Seo-Hyun uncover a conspiracy that threatens to destroy the company and their lives. They must work together to expose the truth and protect those they love. Along the way, they discover the true meaning of family, loyalty, and the power of love to overcome adversity.