Criminal psychology is a mysterious and awe-inspiring profession. Test rigorous logic, challenge the limits of thinking, and explore the truth of evil... She is a female college student who has just graduated from the police academy. She has retained her innocence and longing for a better future, but she does not want to be involved in one bizarre case after another. The maze that cannot be solved, the fog that cannot be dispelled, are intertwined, making it difficult to guard against. In-depth and detailed analysis, accurate judgment. This is a game between criminals and police, a battle between justice and evil. There are layers of horrifying conspiracies and mysterious cases. How will they solve the suspenseful cases one by one? Can their relationship transform from friendship to love?