When a girl moves into Super Junior's dorm as a replacement for her brother, she finds her life spun in circles of confusion.  She's supposed to teach them English, but somehow ends up teaching them how to pick up a girl. 

All it takes, Is three words, To change your life. Simply put, Calmly spoken, Can send you, Into a range of emotions. All it takes, Is one night, To make a difference. A small moment, A few seconds, Can last, For eternity. All it takes, Is three words, To turn, Your life around. For better, Or for worse, Is up to you.