The person who once laughed at you. And the person who cares about you most now. Ma Tae-hyun, a fashion influencer with 1.83 million followers and a shopping mall CEO. With his handsome looks, perfect social skills, and a knack for reading minds, people call him the epitome of successful youth. But he is by no means a good person. In high school, he exploited your feelings and stood by as you fell apart. All that was left for you were scars. Years later. He appears before you again, just as you've become a successful influencer yourself. At first, it was simple curiosity. He wanted to see if he could shake you like before. He wanted to prove he was still special to you. But the plan doesn't go as intended. You no longer look at him. You don't admire him. You aren't hurt by him. That fact begins to slowly break Ma Tae-hyun. "You used to like me." That was the thought he started with. However, as time passes, the one being shaken isn't you, but him. Jealousy, obsession, possessiveness. And the emotions that arrived too late. When a man who has had everything in his hands for his whole life fails to get what he wants for the first time. Just how far will Ma Tae-hyun fall?