Hi. These 2 dramas came to mind, coincidentally, both are with my favorite Jung Hae In:      
One Spring Night     
Something in the Rain

I wouldn’t say the main plot is family opposition to marriage but it’s a major theme. 

New Tales of Gisaeng

My Golden life 

  • +1 Something in the Rain - The FL's mother is strongly opposed to her being in a romantic relationship with the ML, let alone marrying him.
  • The Princess Wei Young - The ML's grandfather (the Emperor) is strongly opposed to the FL marrying the ML. The ML's uncle and the FL's adoptive cousin both want to marry her and the FL's adoptive sister wants to marry the ML, so they all get in the way too. 
  • The Princess's Man - The ML and the FL's father are life-or-death enemies. 
  • The Smile Has Left Your Eyes - The FL's older adoptive brother / father figure is strongly opposed to her having any contact with the ML (let alone dating him or more).
  • My Fated Boy - The FL thinks their parents (particularly the ML's mother) would be strongly opposed to them being together, but (after much suffering) it turns out she was mistaken.
  • Moment at Eighteen - The FL's mother is strongly opposed to her dating the ML (the leads are high school students so marriage isn't really an immediate possibility).
 u_oui:

Hi. These 2 dramas came to mind, coincidentally, both are with my favorite Jung Hae In:      
One Spring Night     
Something in the Rain

I wouldn’t say the main plot is family opposition to marriage but it’s a major theme. 

thank you so much.

 AH :
  • +1 Something in the Rain - The FL's mother is strongly opposed to her being in a romantic relationship with the ML, let alone marrying him.
  • The Princess Wei Young - The ML's grandfather (the Emperor) is strongly opposed to the FL marrying the ML. The ML's uncle and the FL's adoptive cousin both want to marry her and the FL's adoptive sister wants to marry the ML, so they all get in the way too. 
  • The Princess's Man - The ML and the FL's father are life-or-death enemies. 
  • The Smile Has Left Your Eyes - The FL's older adoptive brother / father figure is strongly opposed to her having any contact with the ML (let alone dating him or more).
  • My Fated Boy - The FL thinks their parents (particularly the ML's mother) would be strongly opposed to them being together, but (after much suffering) it turns out she was mistaken.
  • Moment at Eighteen - The FL's mother is strongly opposed to her dating the ML (the leads are high school students so marriage isn't really an immediate possibility).

Thank you so much.I like the way you introduce the dramas.

 Gatcha:

New Tales of Gisaeng

My Golden life 

Thank you.

Five Children. The primary ML is a widower in his early 40's with two young children, who lives with his wealthy former in-laws. He falls in love with a co-worker, a divorced women with three young children. His former mother-in-law wants him to mourn forever, and more importantly, not to leave with the children. His mother wouldn't mind him remarrying, but she is appalled at his choice.

  • When the Camellia Blooms