Nan Yu was originally the protagonist of a Mary Sue game, and lived in the pursuit of men all day long.However, when she woke up today, she found herself in the Republic of China and became a forensic doctor examining corpses.Just when Nan Yu was confused, a mysterious will controlled her body.Nan Yu learned that he must solve a mysterious murder case in order to return to the original game world.Not only that, Nan Yu also needs to compete with Gao Han, the male protagonist Al from another detective game of the Republic of China, for control of the body. Only one of the two can return to his own world.

One of them studies love all day, and the other studies murder cases all day. Nan Yu knows that she can't win against Gao Han in a head-on confrontation, so she must take the wrong approach.However, the case was not as easy as she imagined.All the settings in Al's world are imitated in real time and space, vividly showing the weirdness of the society of the Republic of China.The deceased had a special status, and various forces were secretly wrestling with each other, trying to get a piece of the pie after the murder.Gao Han is not the only opponent Nanyu needs to face.

In desperation, Nan Yu asked to join forces with Gao Han, and Gao Han found that Nan Yu's help was needed to solve the case.The two put aside their past suspicions for the time being and worked together to solve the case, clearing the fog and getting closer to the truth.In the process, the ruthless warlord Jiang Junsheng, one of the suspects in the case, pursued Nanyu.Gao Han therefore discovered that he had been attracted to Nanyu for a long time.As the case approaches the final truth, the emotional trends of the three people become confusing and increasingly difficult to figure out.