Lu Tingyuan rose from the bottom, and with ruthless means, he gradually controlled the urban underground order and became a boss that no one dared to mess with. He acted decisively and never had worries. He thought he would die alone until he met Lin Zhixia. Lin Zhixia is an ordinary college student, pure and clean. In an accident, she got involved in a fight between Lu Tingyuan and his opponent, and was rescued by Lu Tingyuan. From then on, Lin Zhixia became Lu Tingyuan's calamity - he had always been decisive in killing, but he became gentle and forbearing in front of Lin Zhixia; he never trusted anyone, but he was willing to expose his weakness in front of Lin Zhixia. As Lu Tingyuan's mortal enemy, Zhao Jingming learned that Lin Zhixia was Lu Tingyuan's weakness, and kidnapped Lin Zhixia many times to coerce Lu Tingyuan into compromising. In order to protect Lin Zhixia, Lu Tingyuan did not hesitate to put down his body and start a life-and-death contest with Zhao Jingming, even exposing his own trump card. In the life and death tests, the relationship between the two became deeper and deeper, and Lu Tingyuan gradually understood that Lin Zhixia was not his disaster, but the only light in his dark life. In the end, Lu Tingyuan completely defeated Zhao Jingming, unified the urban underground order, gave up some of his power, and joined hands with Lin Zhixia to live a stable life.