Any recommendation for Kdrama where female lead has dark secrets in past?

Hi Kdrama lovers

I am looking for sad/serious/mature dramas where female lead has a dark past (maybe she has done something shameful ) and she try to hide her secrets and make a fake identity. Definitely those secrets reveal gradually . Something like "My mister" where the female lead was a murderer.

I appreciate your recommendations

Komo-e-yo

 apxril:

Come and Hug Me - both leads share a bad memory in the past and in the present, they changed their names and hide their past

Thank you , incidentally it is in my watching list for next week. I am really looking for a bad girl/or girl with dark life who is having a new mask to start over a new life.

 Ackery:

I was going to recommend my mister, but it seems that you have seen it.

Maybe empress ki fits your requirments,

Also, if you can please remove the she is a murderer from my mister, because some people may have not seen it : )

Thanks a lot Ackery. 

I wold rather the modern Kdramas. However, I have already watched Empress Ki.

 AH :

• Misty
• Secret
• Hotel del Luna (not as heavy as My Mister but it's IU again)
• Just Between Lovers (not exactly a dark past, but definitely a major trauma + survivors guilt and more details about it unfold as the drama develops / its something she generally keeps to herself)

Thank you AH .

I have watched 3 of them. Regarding hotel de Luna it is a supernatural theme and I only watch real/mature drama where everything make sense and I can put my foot in actors shoes.

 Czakhareina:

Try:

• Miss Ripley - dark and helpless past that makes her plan and scheme like My Mister
• Live - sad and painful past
• My Daughter Sooyoung - she hides her family issues to get ahead because she is feed up and ashamed of her father
• Melancholic - she is hiding her condition 
• I know you said no fantasy but just maybe:
  • He is psychometric 
  • Soul

Thank you