Moonlight Mystique

Both dramas were romance fantasy. Both were adapted from novel. It is set on historical setting and has xianxia and wuxia elements.

- Although I feel there are not many real similarities between MM and LYF (esp S1)there is one that I feel is really important.
-Tushan Jing and Xiling Xiayao are very similar to Fan Yue and Bai Shou. In the sense that they reach a point of being very healthy. Despite all the pain, angst and misunderstandings that TJ and XY go thru in S1. In S2 they transform into a supporting, strong, communicating, trusting loving, loyal relationship. They took all their mistakes from the past and learned from them. Similar how JY and XY did when they were reborn into Fan Yue and Bai Shou.
-They fight for their love; they are a team and don't let anyone tear them apart anymore especially themselves. Very much like Fan Yue and Bai Shou.
TJ pretty much loves XX the same way that FY loves BS. He doesn’t care about anything but her.
S1 should be watched in order to understand S2.

The opening scenes are so similar you can’t help but wonder if it’s a rip off of the save story. Except that the girl wants to kill the night deity in SD whereas the FL was thankful for his help in MM…

Both fantasy/xianxia dramas.
Both have to collect stones/relics that are related to different emotions in different scenes.

Both are acted by the same female lead BaiLu, both are from the same genre, share similar xianxia elements, both have a strong bold female lead and both have a strong chemistry between the leads.

Feng Miao Jun, a princess of the fallen Anxia Kingdom, crosses paths with Yun Ya, a cruel master from Wei. Despite initial distrust, their fates intertwine. Together with Master Mo Ti Zhun and Saintess Han Yue, they become close allies in their battle against the Heavenly Demons. Through trials, love, and mutual support, they grow into powerful beings capable of facing all challenges.

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Similarities:

Genres of both dramas are fantasy, wuxia and romance.
Both dramas have element of xianxia and comedy
Both dramas has strong badass great demon ML and determind bold FL.
Main leads go through many hardships together.
Both dramas involves humans, demon, gods, immortals.
Demon ML and FL learn to trust and understand each other after facing many obstacles and their love become strong enough to overcome any limitations.
Amazing sound/visual effects, gorgeous costumes and top tier cinematography.
Both dramas are released by IQIYI.

From the same director
Strong FL & ML
FL is clever, quirky, smart. FL completely devoted to the ML and will do whatever she can to protect the man that she loves. Even risk her life for him several times.
ML is completely devoted to the FL and will do whatever he can to protect the woman that he loves. Even risking his life for her several times.
There's a similar betrayal done by the FL to protect the ML. In MM it's in the past rather than the present unlike in the TBW.
The supporting characters all play a very big and important part in the overall story.
The villain is a Deity that wants to take over the world.

From the same director
Strong FL & ML
FL is clever, quirky, smart. FL completely devoted to the ML and will do whatever she can to protect the man that she loves. Even risk her life for him several times.
ML is completely devoted to the FL and will do whatever he can to protect the woman that he loves. Even risking his life for her several times.
There's a similar betrayal done by the FL to protect the ML. In MM it's in the past rather than the present unlike in TBW.
The supporting characters all play a very big and important part in the overall story.
The villain is a Deity that wants to take over the world.