A rookie Shanghai police captain disguises himself as a student to investigate a murder at a local high school. However, he hates studying, Therefore he must juggle homework and solving the crime case.

• Ashton Chen Xiaolong
• Collin Chou
• Liu Tianzuo
• Norman Tsui Siu-keung
• Steven Hao
• Yang Qianlong
• Zhang Haoyu
• Jiang Zhongwei