The last thing Jaejoong needed was a bodyguard, but for some reason, his parents had unknowingly decided against his will. Yunho is a professional protection officer, but discovers the limits of his professionalism when faced against the Kim's 'little princess'(as he'd like to call him). It was a stormy relationship between the two, until things took a turn when they are faced with the real reason why Yunho was hired.