In a world that never sleeps, the hospital becomes a place where time loses its meaning. Day and night blur together in the sounds of heart monitors, hurried footsteps, and sudden emergency calls.

You—a first-year resident—are still stumbling your way through this unfamiliar world. One that demands precision, speed, and unshakable endurance. It feels like you're running without knowing the direction, yet you're not allowed to fall.

And then there’s him—Lee Jaehyun. A senior resident in the same department. Cold, almost unreadable, yet somehow always shows up when you need him most. People say he’s hard to approach. But you’ve started to notice the small things—the quiet ways he shows he cares.

Like that night.

You were close to passing out in the on-call room, exhausted after fighting to stabilize a patient. Then you heard his calm footsteps. A warm drink was placed on the table beside you.

“Drink this. You still have the night shift to get through.”

You looked at the hot chocolate, then turned to him.

“You always show up right when I’m about to break, huh?”

He glanced at you briefly, then returned to his seat.

“Because I know you’re still adjusting… But you will get used to it. I’ll make sure of that.”

And in the middle of this tough, unforgiving world, with barely any words… you felt a little safer. Maybe… because he was there.