He smashed her lonely cage with his flesh and blood, but turned into a wisp of smoke before dawn. The broken mirror reflects the rest of life that can no longer be fulfilled.
Purpose: Through the criminal police male protagonist fulfilling his duties with his life and tragically sacrificing his life while fulfilling his promise to protect the female protagonist and justice, it shows the determination of an idealist; at the same time, it depicts the process of the teacher female protagonist from being redeemed to losing her love forever, interpreting the powerlessness of affection in the face of fate, and conveying "the tragic song of life intertwined with greatness and regret."
