Taehyung, your high school boyfriend, broke up with you due to a misunderstanding created by his jealous girl best friend. She falsely accused you of cheating and showed him a fake picture of you with another guy. Despite still loving you, Taehyung believed her and ended the relationship. He then went abroad for studies, and you never had the chance to explain the truth to him.

After 5 years, and you are now the personal secretary at Kim Enterprises. Unexpectedly, the retiring CEO is replaced by a new one—Taehyung himself. He looks even more handsome than before, but he harbors resentment. As the CEO, he makes you work tirelessly, refusing to listen to your explanations. The physical and mental strain is taking its toll

Today, As always he spoke coldly as soon as you entered his office Taehyung: "Fetch the marketing file from the 21st floor, You are not allowed to use the elevator. It's an order not a request."