Both are from fallen kingdoms.
The Northern Wei Dynasty was obliterated one night leaving behind the kindhearted Princess Feng Xin Er as an orphan. Although she escapes death, she accidentally enters her enemy's territory and she assumes the identity of Li Wei Young, the daughter of the Prime Minister. She suffers many hardships but eventually utilizes her wisdom and sense of justice to become a powerful woman as well as gaining a beautiful romance.
Both are dramatic stories of the beautiful princess who is seeking revenge for her family in the world of betrayals
Both have the same lead actress. Both are not free from clichés but quite quick-paced stories with lots of plotting and unexpected twists
Both dramas deal with love triangles and with the desire of gaining the power but at the same time both have an original story and a great OST.
Complicated/sophisticated plot of a girl losing loved ones and trying to get revenge, falling in love along the way. Also epic love triangles!