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The hospital had stopped seeing them as separate entities a long time ago.
It happened so gradually that no one could point to the exact moment it became true, but now it was simply… understood.
“Where’s Dr. Baek?” “With Jaewon.”
“Has anyone seen Yang Jaewon?” “Check Trauma. Professor Baek’s there.”
Even the way people said it sounded automatic, like finishing a sentence that had already been written.
Jaewon never noticed.
He was too busy juggling charts, answering calls, and trying to keep up with a man who moved through hallways like he had an invisible compass embedded in his chest—always knowing exactly where to go, never hesitating, never slowing.
Kanghyuk, on the other hand, noticed everything.
He noticed how Jaewon always fell half a step behind him, not because he was unsure, but because he trusted Kanghyuk to lead. He noticed how Jaewon’s hand would appear at his elbow in crowded corridors, light and brief, as if asking permission without words. He noticed how Jaewon’s voice softened when he said, “Professor,” like the word itself carried reassurance.
And without ever deciding to, Kanghyuk adjusted.
He slowed his stride just enough. Shifted his shoulder so Jaewon wouldn’t get bumped. Stopped turning corners so sharply.
If someone asked him why, he wouldn’t have had an answer.
It just felt wrong not to.
The on-call room was where the habits were most obvious.
Jaewon drifted in first most nights, shoes kicked off neatly, sleeves rolled up. Kanghyuk would follow minutes later and pause—just briefly—taking in the sight like it was something he needed to memorize.
Jaewon at the small counter, measuring coffee by instinct. Jaewon tugging Kanghyuk’s abandoned coat off a chair and hanging it properly. Jaewon muttering to himself as he sorted through papers that weren’t technically his responsibility but somehow always ended up in his hands anyway.
“You take it too strong,” Jaewon said once, glancing over his shoulder.
Kanghyuk, removing his watch, replied flatly, “No, I don’t.”
Jaewon huffed, added a splash of hot water anyway, and slid the mug toward him. Kanghyuk took one sip.
“…This is fine,” he admitted.
Jaewon smiled, victorious.
There were other things, too.
Kanghyuk would pause mid-motion and say, “Where’s my pen?”
Jaewon, without even looking up, would reply, “Left pocket. No—other left.”
And he’d be right.
When Kanghyuk forgot to eat, Jaewon would wordlessly push a protein bar into his hand. When Kanghyuk forgot to sleep, Jaewon would sit on the edge of the bed in the on-call room and say gently, “Professor. Please.”
Kanghyuk always listened.
Not because he was being managed—he would have bristled at that idea, but... because Jaewon’s voice had become a constant, and constants were reliable things. Necessary things.
The teasing started quietly.
A nurse raising an eyebrow when Jaewon automatically reached for Kanghyuk’s coat during a sudden downpour. A resident smirking when Kanghyuk answered Jaewon’s pager instead of his own. Someone murmuring, “They move like magnets.”
Jaewon laughed it off every time.
Kanghyuk didn’t.
Especially not when residents from other departments began lingering around Jaewon.
Asking for his help. Complimenting his calmness. His kindness. The way he explained things so clearly.
Jaewon flushed easily, nodded politely, completely unaware of the way Kanghyuk’s presence shifted behind him.
Kanghyuk stood closer.
A hand on Jaewon’s shoulder. A palm at his back. A firm, unmistakable: “We need him.”
It wasn’t rude. It wasn’t aggressive.
It was final.
Later, as they walked down the hallway together, Jaewon laughed, bumping Kanghyuk lightly with his shoulder.
“Professor, you keep stealing me.”
“You were occupied,” Kanghyuk said.
Jaewon tilted his head, playful. “Are you jealous?”
“Yes.”
The answer came instantly.
Jaewon stopped walking.
“…Oh.”
Kanghyuk glanced at him, as if realizing too late that most people didn’t admit things like that so easily.
“I don’t like distractions,” he added, stiffly.
Jaewon’s ears burned all the way to the tips.
The conference was supposed to be routine.
It turned into anything but.
Hotel error. One room. One bed.
Jaewon panicked spectacularly—apologizing, offering the floor, trying to make himself smaller in a space that suddenly felt very intimate.
Kanghyuk watched him for a long moment before speaking.
“That’s unnecessary,” he said.
Then, calmer, slower: “I won’t cross your line.”
He lay down on his side of the bed, back turned, creating distance without coldness. A boundary that felt safe instead of sharp.
Jaewon’s shoulders relaxed almost immediately.
They talked quietly, voices low, sharing small, unimportant things. Jaewon laughed softly at something Kanghyuk said—surprised he’d said it at all.
Sleep came gently.
Kanghyuk woke before dawn.
He always did.
But this time, he didn’t move.
Jaewon had shifted closer sometime in the night. His head rested against Kanghyuk’s shoulder, warm and trusting. His breathing was steady, peaceful.
Kanghyuk stared at the ceiling.
He thought, distantly, that he should move.
He didn’t.
Instead, he adjusted his arm just enough so Jaewon wouldn’t wake. Watched the way Jaewon’s lashes fluttered, the faint crease between his brows smoothing out in sleep.
This...this quiet, weightless closeness,felt dangerous in a way no battlefield ever had.
Not because it hurt.
Because he didn’t want it to end.
If Jaewon stayed like this forever, Kanghyuk thought, he would make room. He already had.
When Jaewon woke, confused and warm and mortified, Kanghyuk only murmured, “Good morning,” like this was the most natural thing in the world.
Jaewon tried to move and failed. Blushed furiously. Laughed under his breath.
Neither of them rushed.
Outside, the city woke.
Inside, something softer settled into place—quiet, steady, and utterly unwilling to be let go of.