Like either it's the second season and we follow the children of the protagonists from the first season, or the parents are "heroes" in the sense of having a successful life and love life. Basically, like your parents are the role model of every romance story out there and then there's you who don't seem to follow the script at all, kinda... 

not really follow the "parents story' is ideal romance, cause some are tragic or did not end up together but the set up of Lead is the child of two protagonists scenario:

  • Love rain
  • Story of Yanxi Palace (Parent Story) AND Yanxi  Palace:  Princess Adventures (Daughter's Story)
  • Mystic Pop Up Bar - kinda spoiler to put this here
  • Lobo/Wolf (Parent Story) AND Imortal/Immortal (daughter's Story) --> PH
  • Jumong (Main story) AND Kingdom of the Winds (Grandson's Story)
  • Stepmother and Daughter Blues - though not romance centered
  • Romance of Our Parents - heavily follows the Parents story than  the kids and not the  romantic type story. very realistic
  • with parent story having great impact and background set-up
    • Mr. Sunshine
    • GU Family Book
 kwoon:
or the parents are "heroes" in the sense of having a successful life and love life. Basically, like your parents are the role model of every romance story out there and then there's you who don't seem to follow the script at all

Lupin no Musume. The FL's parents are successful gentleman thieves, and madly in love. They raised the FL to be just as skilled in their craft, but she wants to leave the cat burgling lifestyle behind for a normal life as a librarian with her fiancee. However, her fiancee turns out to be a policeman from a whole family of policemen. The FL's parents reminded me just a bit of Gomez and Morticia Addams, but with a very colourful and campy mask-wearing wealthy thief lifestyle swapped for the goth aesthetic.