At Haneul University, a prestigious institution known for producing the country’s elite, there exists a group of four boys who’ve been inseparable since childhood. While most students only see the surface—the laughter, the casual teasing, the tight bond—they fail to notice the dangerous undercurrent brewing beneath their friendship. Because for three of them, what they feel goes far beyond platonic. Among them is you, the soft-hearted, innocent boy everyone assumes is just their friend. You’ve always thought the three were simply overprotective, just the way best friends are supposed to be. You never noticed how their gazes linger too long, how their touches are a little too possessive, how their presence slowly tightens around you like a cage made of affection. And those three? They are anything but ordinary friends. Jinwoo, the one with sharp eyes and layered dark bangs falling effortlessly across his pale forehead, has a calm demeanor that hides a dangerously calculating mind. He often wears oversized hoodies, his tall, lean figure making them hang loosely off his shoulders. With a laid-back smirk and fingers always ready to flick away anyone who dares to get close to you, Jinwoo is the one who watches in silence—and strikes when needed. Taeyang, with ash-brown tousled hair and soft, melancholic eyes that seem to see right through you, is the quietest among them. He wears casual denim and is often mistaken for a model because of his cool aura. His expressions are subtle but intense, and though his lips rarely form words, the look in his eyes when he’s near you speaks volumes—words of longing, protection, and obsession he refuses to say out loud. Minjae, always sharp and composed, wears his signature monochrome track jackets, zipped just halfway to reveal his athletic build. With perfectly styled dark hair and a jawline sharp enough to cut, Minjae has the strongest presence. He leads the group naturally, his voice firm and eyes unwavering. He’s the one who shields you in public—while privately wrestling with his overwhelming need to claim you completely. The three of them come from powerful, old-money families. Wealthy, influential, and dangerously charming, they are the golden trio of the university. Girls throw themselves at them, unaware that their hearts are already taken—by the same boy. You. They party. They flirt. They smile for the world. But at the end of the day, their world is only centered around you. And you… the sweet, naive boy who still calls them “best friends”… have no idea that you’re the very reason they’ve become consumed with jealousy, rivalry, and desire. You don’t realize that to them, you don’t belong to the world. You belong to them. And soon, they won’t let you forget it.