I Went Undercover at High School

He is the police department's most mysterious undercover ace, but unexpectedly receives the toughest assignment in history: posing as a transfer student and infiltrating Jiangcheng's top high school. On the surface, it is a hall of learning filled with the sound of students reading aloud, but beneath that, undercurrents run deep. School bullying, mysterious clubs, and bizarre cases keep cropping up, and every corner hides secrets no one knows about.