Lost Track of Time

Both are historical dramas centered around the revenge plot by the FL who, after being betrayed and losing everyone she loves, returns for revenge through a fantasy twist (face swap vs. time travel).

Both FL fall in love with and marry a man who becomes the emperor and cause both her death and the deaths of her loved ones. FL then finds herself alive and back several years and sets out for revenge and to change fate. Both MLs were largely unnoticed side characters in FL's first life but loved and helped her and become the person she trusts in her second life.

In both dramas the female lead comes back to life via reincarnation/time traveling and she wants revenge from those who killed her and her family in her previous life. Then she also meets again the male lead and for a 2nd time they fall in love with each other and also he helps her take her revenge. Both dramas are great and the main couples have great chemistry . For me , Lost track of time is superior to Jun Jiu Ling , because it has more character development, the romance is way more tragic and sweet and the plot is more complicated . Overall , both dramas are very similar.

- FL was killed by those persons whom she trusted.
- FL reborns again to take her revenge.
- Pairs up with ML whom she ignored in previous life.
- Gradually fall in love.

Literally the same premises. I read the synopsis on Viki and thought oh is this the one with Zhang ling he?

In both shows the leads are socially awkward outcasts. They also idolize their popular love interest.

Both FLs are betrayed and murdered by the man they love. They then get a second chance at life (time travel vs. their soul entering someone else's body) and set out for revenge against that man. Along the way they become involved with that man's kind-hearted brother.

Same time travel "reset" theme where FL was mysteriously given a second chance to relive her past and change her fate.