Both are historical mysteries that can be characterized as magical realism and are very stylish. The leads are are smart and determined and get drawn into a conspiracy that involves some of the most powerful people in the nation. Both show the lives of ordinary citizens while also including political drama.
I just started league of nobleman but seeing how this is going, it reminds me a lot of the longest day in in chang'an. the cinematography was the first thing that caught my attention. both series have mysteries and cases they solve that eventually sounds like it going to lead up to bigger cases. the only difference is that the longest day in chang'an is based on a one-day event but the action pack and everything that happened within that 24-hour period kept me on edge. the same feelings I have for a league of nobleman, I kept wanting more.