"Let's play a game, Y/N... Find me." Jeon Jungkook was my childhood best friend, my first love, and the only person who swore he'd never leave me. But in a single night, he vanished into the elite black-ops military, leaving behind an empty apartment and a devastating note: Don't wait for me. Four years later, he returns as a hardened, ruthless Special Forces Captain, desperate to find the girl he abandoned. But I'm not that soft girl anymore. I built a wall around my heart and disappeared into a dangerous civilian intelligence career. He lost the game. I don't want to be found. But when a deadly threat puts my life on a hit list, I'm forced into 24/7 witness protection inside a remote safehouse. The armored doors slide open, and the commander assigned to protect my life is none other than Captain Jeon Jungkook. He wants an explanation. He wants forgiveness. But looking at the man who shattered my world, I give him the only order he has to follow: "Thank you for your service, Captain Jeon. Let's keep this strictly professional."

Y/N is a dedicated doctor who believes medicine exists above morality-every life deserves saving, no matter whose blood stains their hands. She lives by rules, ethics, and distance. Kim Taehyung lives without any of those. A feared mafia leader ruling the city's underworld, Taehyung survives by violence, loyalty, and control. Mercy is not a language he speaks-until a single gunshot brings him bleeding into Y/N's emergency room . She saves his life. That one decision entangles her white-coated world with his blood-soaked one. Forced into an uneasy alliance when Taehyung needs a doctor he can trust-and who won't betray him-Y/N finds herself standing at the edge of his empire. She treats wounds caused by bullets, knives, and betrayal, while slowly uncovering the man behind the monster. Enemies at first, they clash over morality, power, and choices neither of them wants to question. But as danger tightens around them, lines blur. She becomes his weakness. He becomes her greatest sin. In a world where survival demands cruelty, can mercy rewrite fate-or will loving the devil cost her everything

A story of two best friends..who can even die for each other...BUT......will the things remain normal after someone came...??. A story of love...a story of betraying...a story of hate....A STORY OF REGRET...🍂 💜💜💜💜The story Is mine. Don't show hate towards any character. It's just fanfiction.💜💜💜💜 don't copy and repost.