If you are easily frustrated by the endings which let you imagine what it gonna happen next, do not watch this drama unless the second season already came out.

Princess Agents must be one of the best chinese historical drama I've watched so far. Everything was awesome : the story was well balanced between love and the political plots.
Chu Qiao is oustanding, she is strong but at the same time weak and fragile. Yuwen Yue and Yan Xun are as convincing as her. The second leads were good as well.
Some characters were getting on my nerves, such as the princess or the king, but I couldn't hate them. She's just a poor soul lost in this cruel world and he's just afraid and scared.

I really hope they will make a second season. This drama definitely deserves a second season !