A strange letter came to the girl's hand, pointing to a vicious robbery and murder in Qinshan Port City more than a decade ago. Li Meiyuan, a 17-year-old female high school student, lives in depression and delusion all the time. She almost excludes everything around her. The blue-diamond Damsel in distress is a new style of very brainstorming adventure game, you need to complete all the content of the previous chapter to unlock the new plot. The process of finding the truth of a case is full of confusion and various difficult reasoning challenges. You need to have certain clues to get the truth accurately. You need to go into various scenes of time to show your reasoning ability. Combining with the information described in various figures, you can find the correct answer. Each chapter has a wonderful inside. Allow you to challenge, constantly explore all kinds of strange cases around Li Meiyuan, incarnate detective step by step reasoning to get the right clues to guide the plot forward.