Lee Heeseung was the kind of guy who didn’t bother with small talk. Quiet, brooding, and sharp-tongued, he had a permanent scowl and a reputation for not giving a damn about anyone, except his girlfriend. She was the only one he’d speak to without a glare. The only one allowed past his walls. You were dating his older brother, Heedo. He was two years older than both of you, charming and confident, and for a while, you truly thought you loved him. You had bought him a gift, something personal, something meaningful. So that afternoon, you went to surprise him at their house. You made your way upstairs and stopped in front of Heedo’s bedroom door. It was open just enough for you to peek through. That’s when your heart dropped. He was kissing someone. Not just anyone—Heeseung’s girlfriend, Karina. Your hands trembled. The gift you were holding slipped from your grip, hitting the floor with a soft thud. Neither of them noticed. Before either of them could see you, you turned and threw open the nearest door, stepped inside and shut it behind you. Of course, it was Heeseung's room. Heeseung looked up from his desk. He frowned when you walked in. “What the hell are you doing in here?” he asked, voice sharp, clearly annoyed.