Both are short length dramas with a real world FL entering the world of a novel and falling in love with the story's villain.

Both are short length dramas with a real world FL entering the world of a historical novel in which she is married to the story's villain. Both FLs' characters are supposed to die in the story, and they attempt to change it to say alive, all while falling in love with the ML.

Both are short length dramas about a sudden marriage that the FL initiates so she can get something she wants. The couple has a past connection, unknown to the FL. Both FLs are strong willed.

Both are short length dramas with a sudden marriage that grows into a real relationship.
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While very different settings, both feature characters who have prophetic dreams of the future and try to stop those events from happening.

Both are short length, gently paced dramas in which a couple marries before falling in love. Both center around the FL finding her new life with the ML's family, as well as getting to know the ML.

BH is basically a darker version of QLAW, both about a childhood meeting between the prince and a noble girl, his determination to select her as his queen, and the palace scheming, intrigue, and assassinations that result in the FL losing her family and living a commoner's life before eventually ending up as the queen. The love/hate relationship between the main couple is similar, as is the FL's personality.

Both dramas are sort of a gender flipped variation of each other with the same concepts: a FL who was supposed to have been killed at birth because she was born a twin but survives, twins who get mistaken for each other, one ends up murdered and the other stepping into their place, mistaken/unknown identities, assassination attempts and scheming within the palace, a childhood meeting between the main couple that the ML or both never forget even as an adult, and a happy ending outside of the palace.

Both are historical dramas in which the young king falls in love with a noble girl he meets in childhood, but tragedy causes her to end up losing her family and living a commoner life, while he never forgets her and continues to search for her, finally finding her as an adult. Both dramas feature memory loss (ML vs. FL), an assassination attempt on the king in which he is initially believed dead, and scheming within the palace.

Both dramas are set within the world of a manga with a self aware FL. Both FLs are supposed to be murdered by the villain ML, but resolve to change the story/their fate, and end up falling in love with the ML. Both FLs are ill and can only be cured by the ML.

Both are shorter length dramas with a self aware manga character as the lead. Both dramas have a quirky vibe and don't take themselves seriously.

Both are shorter length dramas with a self aware manga character as the lead.
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