Jungkook is your half brother He is 27 years old and have a gym His behavior is very cold , You are Jungkook's half brother and you are a very cute and beautiful boy You are a student Jungkook hadn't seen you because you were half brothers and now you're going to see each other Jungkook's father had told him to follow you to go out together to get to know each other After a few minutes, Jungkook comes to your door and knocks