6. Jack & Jill (2021) - mostly took place in "Jill's" house.

7. The Library - a film that mostly took place in a library.

*Sorry, afterthought of another one. BONUS: Stuck On You (2021)

 NoirRoseHeart:

6. Jack & Jill (2021) - mostly took place in "Jill's" house.

7. The Library - a film that mostly took place in a library.

This should be 7 and 8

10.  Reply 1988:  On the street where everyone lives.

Dramas that have a sweet relationship between the FL and the ML's mom:

1.  Backstreet Rookie (Kim Yoo Jung and Kim Sun Young connect so well). 

 emaureeng:

2.  Fated To Love You

I think you're thinking of the grandmother.  The mother of Lee Gun (actually step-mother) sabotaged Mi-Young until almost the very end.

3.  Run On  

5. The Love Equations

7. I Picked Up A Star On the Road - majority of the drama is in a small rooftop apartment

 cal0ri3:

7. I Picked Up A Star On the Road - majority of the drama is in a small rooftop apartment

That is the previous topic, please refer the current topic

If SFL and SML is allowed

7. Once again - The relationship between Da Hee (SFL) and Choi Yoon Jung (SML's mom) is sweet! 

8. When the Camellia Blooms (up until one point though)

9. Whats Wrong with Secretary Kim

10. Legend of the Blue Sea