Double redemption + business partner model: from "mutual use" to "mutual trust", the male protagonist protects the female protagonist (against official discrimination), the female protagonist uses her professional ability to help the male protagonist investigate the case and seek revenge, the emotional line is interspersed in the investigation process, sweet but not greasy (such as the male protagonist finding rare autopsy tools for the female protagonist, the female protagonist using space medicine to detoxify the male protagonist), no sadism, no mistakes and procrastination
