Jeon Jungkook is a gang leader.

Jungkook leaned back in his chair, smoking, a mocking smile playing on his lips. He was the most dangerous and powerful gangster, and also the most handsome and richest businessman in the world. No one dared look him in the eye. Your stepfather lost money in his casino and owed her. When you entered the house, you saw men in black suits beating your stepfather. You ran to stop them, and then your eyes fell on Jungkook, who was their leader. You screamed, "Stop! Who are you? Leave my stepfather alone!" You stood in front of them and pushed them back, looking at Jungkook.