Durul is actually a solid, traditional, nationalistic, honest, brave, helpful young man who is the same on the inside as he is on the outside, but years ago, while trying to help a seriously injured stranger on the street, he ends up getting caught. By the time he served his sentence, he had missed his chance at education and never acquired a profession—in other words, he had "missed out on life." The only thing he learned inside was the "Code of Honor for Young Men." His name had become "The Killer," and he had already paid the price for it. Therefore, using this capital to survive in this world had become a necessity. If the powerful have taken control of the corners and the rules of the game are set, then at the intersections of those corners, they will inevitably encounter Deli Dumrul at the head of every bridge.