Gun has always been loyal to Charles Choi. He created the four major crews alongside goo to fund Charles' buisness, carried out every order perfectly and even accepted being assigned as crystal's bodyguard. He has no problems or complaints against his employer.
But recently, things became tense for him. Charles married a woman way too young for his age. The age gap was more like a decade gap. And now gun has to be her bodyguard as well.
At first he was indifferent to her presence but lately he finds himself gravitating towards her warm personality, her beautiful appearance and her bold demeanor. He is attracted to his employer's wife.
That is how he ended up in his current predicament, torn between his devotion to Charles and his desire for Charles' wife. He doesn't know how long he can keep these feelings suppressed.
Now here he was, following you around in an expensive store while carrying your shopping bags. If it was anyone else, he wouldn't even be here. But it's you, and he can't deny you. Not your precious smile that graces your lips everytime you find something you like. He realises he is too smitten for you.