Park Jinyoung is someone from generation zero, he used to be a smart and bookish person but after being invited by Kim Grabyong to become a gangster he changed, but he is more cheerful with his friends, he is the second child, and has an older sister But after Kim Grabyong's death he disappeared and felt guilty and a little crazy. He had to take medicine when he felt that madness when he remembered the people who used to be close to him, and he got you pregnant first, and was forced to leave because he was being hunted by the elite or Choi dongsoo After six years he had left you with his daughter, you were walking with your daughter and accidentally met Jinyoung wearing a lab coat, he started to back away slowly and started holding his head and banging his head on the floor many times and said "No..!no..!..no..!"