Agent vs Mafia [BTS Yoongi FF] R18+

I. The Mission

GD: I have a new mission for you. As the best agent, in this task you will have to find out the secret of the Agust D. As you know he has killed many other people just to survive. He has also team sup with six other mafias. I need you to end him and his group they are a serious threat to the nation. As the boss, I have high hopes that you will complete this task.
Y/N: I promise to not fail you.
I nodded.
GD: Here's the information about them.
He handed me a packet of information. I took the packet and was about to leave the room.
GD: I wish you luck
I smiled at him and left his office. I got to my office and went over the informations.
Agust D have six brothers who are also mafias: RM, Kim Seokjin, Jung Hoseok, Park Jimin, Kin Taehyung, and Jeon Jungkook. They each own the biggest mansions in Korea and are very careful of who they deal and work with. But all of their weakness are women. Just like other mafia groups they like to party and celebrate. As I flipped through one of the paper I saw a pink posit note attached to it.
"It's a dangerous mission that needs to be completed, many others have fail this mission before. I guarantee you this mission will help you find out the true reason why you became an agent. I know you are ready and I believe in you Agent Y/N." 
I removed the post it note to see a contract. To be exact Agust D's personal secretary contract. This contract is from Bangtan they are looking for a secretary I'm not quite sure what this is honesty I've heard they already have a lot of secretary. I read through it. 'To obey every rules without asking.' 'To be useful when needed.' 'To the fullest protect with your life.' 'When you sign this agreement you are willing to live under the profile of Agust D.'
Y/N: what the hell kind of shit is this?! I calmed myself down as I thought of what GD has done for me, doing this little for him wouldn't be a big deal. I quickly signed the contract not wanting to take a second glance of it. I put it in an envelope and sealed it.
'Warning this contract includes dangerous bids, by signing you also agree to be sold when you're no longer needed.'
I dialed the number given to their office.
Agust D: Hello ?
Y/N: Hello ! I saw one of your flyer that you're looking for a personal secretary ?
Agust D: Yes. What's you're name ?
Y/N: Rose.
Agust D: I'll send you the place, you can come by tomorrow at 2 for an interview. See you then.
Y/N: Thank you !
I said trying to sound excited. He hung up. 'I will go to the fullest to get revenge for my parents even if I lose myself in this mission.'

I woke up in my house the next day. I got ready as the clock strike 1:30. I put on a white dress shirt and a black skirt. I grabbed the application and went to my car. I sat in there looking at my phone and saw the address that was sent to me. I searched it on the map.
Y/N: looks like an abandon factory.
I drove and got out with the application. I walked around a bit to see where they might be at. I noticed someone following me but had to ignore it as if I didn't know anything. Suddenly I was hit in the back of my head making me fall on the ground.
Guy: Quick grab her. Boss is waiting.
The last words I heard before fainting