The Song Dynasty, Liu Haiyang, and Huang Tiancheng were classmates at the police academy. However, the Song Dynasty was expelled for committing a mistake, shattering the dream of being a police officer. Liu Haiyang and Huang Tiancheng successfully graduated and became true police officers. The Song Dynasty, expelled from the police academy, was entrusted by Liu Shouyi, the father of Liu Haiyang, to infiltrate the Guanyu Group and investigate an arson case. When Liu Shouyi was in contact with the Song Dynasty, he was appointed as Guan Yu
The Song Dynasty, Liu Haiyang, and Huang Tiancheng were classmates at the police academy. However, the Song Dynasty was expelled for committing a mistake, shattering the dream of being a police officer. Liu Haiyang and Huang Tiancheng successfully graduated and became true police officers. The Song Dynasty, expelled from the police academy, was entrusted by Liu Shouyi, the father of Liu Haiyang, to infiltrate the Guanyu Group and investigate an arson case. When Liu Shouyi was in contact with the Song Dynasty, he was appointed as Guan Yu