Agent X Playboy || Jungkook FF *discontinue for now*

|| PARK Y/N ||, a girl who had trained to be an agent since she was 3 years old. She's good with guns and fighting but she's not alone. She has a best friend who is always with her and do missions together.
|| KIM TAEHYUNG ||, Y/n's best friend. Both of them always do missions together but after they turn 18, they will do missions together, this are one of the rules of KSA (Korea Seoul Agents).
|| JEON JUNGKOOK ||, the playboy. He always gets what he wants. He date alot of girls but not long. (not until he me Y/n *cough cough*) Jungkook had been 'friends' with Y/n since Middle school and he keeps teasing or joking around with her. Some girls are jealous.
One day, Y/n was doing some mission, she didn't know Jungkook was there. He watch every single move that you made. And he knows your true identity as an agent. After Y/n knew about that, she met and begged him to keep it a secret and yes, he agreed but... in one condition... Do him a favor. What is his favor? Do you trust him? What if he tells everyone about it?