Sonho de Chang'an (2021)

drama with the same leads.
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Both dramas have the Female lead twin sisters
Both dramas have Smart female leads
Sisters seperated after birth

Both dramas have a similar story
The eunuch is in charge of the palace and he's not up to good
both dramas are palace dramas with romantic story in them

Both dramas have the same first and second male leads - Cheng Yi and Han Dong
In both dramas there are Power Struggle nad Fight for the Throne

both is love story of emperor/heir of throne with their female protector sword-bearer/sorcery | both have system of secret women army (in term of sorcery and sword bearer ) kind of protector to their royal Linage in every generation and their task is to protect the heir and maintain the power with him | both are costume drama | both are about palace power struggle difference is that one about magical fights | one is time travel |

1. Most main and supporting casts in Stand by Me is from Love and Redemption such as Stand by Me's Cheng Yi, Zhang Yuxi, Mickey He, Yang Xi Zi, Fu Fang Jun, He Zhong Hua, Bai Shu, Ethan Yao, Li Jun Yi, and more.
2. Both female leads start out with a more naive/singular mindset
3. Both main characters in both dramas have some sort of hidden feud between the two
4. Mickey He plays Cheng Yi's father/godfather
5. Male leads in both are seen as "evil"
6. Male leads get smitten by the female lead

helpless puppet king/prince/heir | power struggle | female lead thought male lead is villain | one is tear jerker another is exited | poison play main role | female lead help male lead in her way | one is Chinese other is Korean |

Both dramas are about the palace's conspiracies and corruption
Both have Sad Romantic story
with the male lead in pain most of the time and trying to save the female lead most of the time

Both are similar to each other.... historical, romance, action, Life and political. If you like it then please watch it.

Similar vibe & chemistry between ML and FL, both historical/fantasy and both have comedic elements which make them light-hearted despite the storyline.