Night and day came and fell alternatively quicker than normal. They postponed the announcement of who would become the empress for several days because of the investigation in the east district.
The problem with Princess Agnes was that she underestimated the intel of the Haimirich Empire. Even if she left no evidence that would trace it back to her, Conan would always find the culprit. It was just a matter of time, and sadly, this issue was far too easy to challenge the emperor's aide. Aries didn't even need to do anything and let things unfold, especially with Lady Ivory's insistence and participation in the investigation.
Although Lady Ivory was apparently disqualified due to her incompetence. How could anyone want an empress who couldn't even protect a small town? She would just become a useless marionette in the empire.