This is a great series, because of the plot line. There are parts that make me so anxious because I'm wishing for something to FINALLY happen, and when it happens it doesn't go the way you anticipate. I'm not sure this would fall under "mystery" but there are aspects that make it mysterious and keep you guessing the outcome. Very unexpected. I enjoyed Hu Ge in this series, as well as his "bromance" with the other characters.