Hua Tian was the protagonist of an urban novel. When he was young, he had been experimented on, so he had a deep understanding and understanding of life and human nature. He was a killer who committed crimes in the city, but deep down, he yearned for love and warmth. After finding his family, Hua Tian was reunited with his family and gradually understood what had happened to his family. He began to reflect on his actions. However, his elder brother died in an accident, which made Hua Tian fall into deep grief. He began to reflect on his past and the meaning of life. As time passed, Hua Tian gradually grew into an outstanding assassin and began to search for the answer in his heart. He experienced many setbacks and tribulations in the city, but finally found his mission and faith and became a true hero.