The idea is similar to Scarlet Heart Ryeo (which is intentional) but is not even close to be on the same level. The worst mistake this drama made is disappointing me. It started out very promising; the FL was (relatively) smart, the romance between the leads was cute and funny, and the story had its own twist.
But then, the FL just started to get dumber and dumber. For some reason the three main princes were obsessed with her until the end, the "conflicts" oftentimes didn't make any sense and the characters were so easily manipulated for people who should be used to court intrigues. Even the characters who were smart in the beginning and were able to look through manipulation just went dumb and hollow towards the middle/end.
The main leads disappointed me so much as well. There was so much chemistry and romance in the beginning but they started to give second lead vibes in the middle part and it only got worse. In the end, I think the writers realised who their story even was about and tried to save it again but no chance. They felt like support roles in their own love story. Even the extremely annoying and morally disgusting side couple got more character development than them.
But I'll give the second lead actress that I really hated her character with a passion. Great acting from her part.
Overall, quite disappointing, especially with such a promising start. And also quite vain, if I'm being honest, it just ran around in circles.