I loved the three main leads in this drama and their relationships, they all had really good chemistry. I was hoping, throughout this drama that none of their relationships would get ruined by the politics:
- the sibling like relationship between Shyi (FL) and Wang Er (SML),
- the frenemy relationship between Yanyi (ML) and Wang Er (SML) and,
- the comedic bromance to romance between Yanyi (ML) and Shiyi (FL).
I love how none of the leads cared about politics though it influenced their lives more than anyone else's due to the power of their family (FL), their own status (ML) and their families strong political alliance (SML).

Yanyi (ML):
At first Yanyi seemed like the the typical cold (frankly a bit boring) ML, but after several episodes he became much warmer and comedic. His relationship with the Shiyi also made his character more interesting.

Wang Er (SML)
Wang Er was always hilarious, he was a bully in the first episode but was surprisingly a sweetheart in every other. He was the most intuitive character and was spot on about Shiyi from the start. The guy who sleeps in all his classes turned out to be the poet and writer of the group.

Shiyi (FL)
Shiyi made a quite handsome man, the makeup and posture was perfect. Her character was physically strong, calculative, street and book smart, but also very oblivious to the admiration of Yanyi and Wang Er, which made me love her more. She wasn't annoying or stupid in any way and she always had a plan before doing anything. I usually don't like plots where a the FL pretends to be a man, but I felt that there was a good enough reason for that to be the case here, and the FL pulled it off really well as a pretty boy. She had both men and women alike, falling head over heels for her and seriously considering their sexuality.

Lin Baozi
The doctor is introduced several episodes in. An anti-imperialistic doctor who doesn't care for power, status or the gender of Shiyi. He was a really funny and enduring character who seemed like the third wheel to Yanyi and Shiyi.

Wang Xiyuan (SFL)
Wang Xiyuan was also surprisingly a sweetheart and EXACTLY like her brother which made her such a loveable character. (SPOILER) I mean, she got married to the Shiyi, the woman her brother was in love with ???.

Ending (SPOILERS)
Everything was going great until about the last 4 episodes, especially the last 2.

I have NEVER seen a Kdrama or Cdrama where the ML is the Crown Prince/Emperor and gets a happy ending with the FL. I've seen open and outright sad endings, but not a single happy ending. And this drama, though comedic and mostly light throughout, it got really sad and HEAVY in the last 4 episodes. The three relationships I was afraid would be ruined, did in fact get ruined, the only reason it was surprising was because it happened very late in the drama. Character development, relationships and even the plot went down the drain in those last episodes.