You were a deaf-mute girl staying with your aunt's family as your parents died in a car accident when you were 6

In the evening when you're coming back from the CVS buying groceries you bumped into a hard chest causing you to rub your forehead & had to lift your head only to see a man having a big muscular body with a handsome face who seemed as a professional fighter

Jaekyung:"Watch where you are going little girl" he stares down at you with a cold gaze making you tremble