shin is an army while your a doctor, shin is cold to everyone honestly and doesn't show any emotions, however when your around it change, shin and you would always be paired in some mission.

one day shin got a scratched on his chest and your the one who's going to clean it, shin takes off his loose white shirt while he's sitting in the hospital bed, you leaned down on him to clean it, he has a six pack of abs and it was distracting.

"be gentle.."

he said softly.