What happens when two different world collide? The one who takes lives. The one who saves lives. Bagtan Trauma centre- where lives are saved. Bagtan mafia gang- where lives are taken. "You saved my life." Jungkook slowly took Y/N's hand and placed it against his heartbeat. "You operated on this heart," he said quietly. "Now it belongs to you." Y/N could feel his heartbeat beneath her palm. Strong. Alive. Her breath hitched slightly as his fingers tightened around her hand. His eyes stayed fixed on hers, filled with an unreadable emotion she couldn't understand. "And for you..." His voice dropped lower. "I can take lives." Y/N didn't know why her heart was beating so fast under his gaze. Maybe because for the first time- Jeon Jungkook felt far more dangerous awake than unconscious. But saving Jeon Jungkook might become the most dangerous decision of her life. ━━━ CODE BLACK ━━━ the one who operated his heart