Ahn Sarang:

Second leads count? 

Yes

4. Fight For My Way - ML and SFL

5. Dali and the Cocky Prince - FL and her male friend, more like a brother not by blood

6. Call it Love - FL and SML


I feel like your request considers friendship between straight people of opposite sex, so as bonus: Love in contract 

 NoirRoseHeart:

Yes

Oh, I already listed 3 items


So, another bonus: 25/21 - second leads were life long friends with no romantic interest

7. Love in Contract (FL and her roommate )

8. The Beauty Inside (kdrama) - FL is best friends with 2ML

9. Sassy Go Go - FL and Dong Jae

10. The Heirs - FL and Chan Yeong

Bonus Reply 1997

Somone else can pick the next topic

10 historical titles in which ML makes FL his maid/concubine to keep her safe/as a cover 

Please, no FL being "eunuch" as an undercover

1. Alchemy of Souls - FL pretends to be ML's maid but she's his teacher in fact

2. Empress Ki - FL spent nights with ML as his 'concubine' but taught him instead

3. Dong Yi - FL returned to the palace as ML's Royal concubine but actually it was a fake appointment for safety reasons

4. The Forbidden Marriage  FL serves the ML as his maid, but ML wants her to channel the former Crown Princess.

5. Maid’s Revenge

6. Dong Lan Xue - FL was the Ml's maid as part of their revenge plan

24 hours, new topic:


10 dramas in which a male character raises someone else's child (born after his wife's affair) 

With or without knowing it's not his child.

1. The Glory

2. Queen of Tears

How about relative child. Not him nor his wife's child? 


3. King's Woman - FL's child with her ex raised by ML 

 Komentator isenk:

How about relative child. Not him nor his wife's child? 


3. King's Woman 

Hmm, in this case, he would be just a guardian for this child, if I understand correctly? 

The point of my request is different... 

3. Flex X Cop - ML's older brother wasn't ML's father son

4.Perfect Marriage Revenge -SFL found out her real dad was a  jailbird and belived the CEO was her father her whole life