His personal bodyguard

When they both were all about black. Just like nothing is in your hands they have 3 months , when they feel nothing except hatred and revenge for each other. How will they survive 3 months together?

Let's see till when you can play bodyguard. He says

You will ask me to forever be your bodyguard. She answers

What will happen when a man with captivating eyes catches her eyes in the meeting room will the man still hate her for looking at another man named Taehyung with a grey past?