This article is in the style of complaining. It is very likely that when you are watching the plot that brings tears to your eyes, you will suddenly ruin the atmosphere of the article with one sentence. Well, it is probably... The rise of the Investigation Agency (what is that), surrounding the Investigation Agency, tells the love story of a low-level black girl and a high-level black boy, as well as the dark history of a yandere girl and a young man.