Intense CDrama with romance

I am getting my wisdom teeth taken out, so I am looking for a drama that will distract me from my suffering for a few days. The kind where you can't help but turn on episode after episode, and get completely immersed.

My requirements are:

  • a lot/central romance, but the rest of the plot is interesting too.
  • No crime solving/police procedural and gory Horror. Spooky stuff, urban fantasy and such are okay.

The rest I don't care, historical, modern, straight/BL, fantasy, historical, bonkers, vertical, low budget, cinematography on point, I don't care, as long as it's an episode turner.

Also, if you thought it just had a rough start but it gets awesome after the setup episodes, please mention this.

Shows that were like this for me:

Lost Romance

Word of Honor

The Eternal Love

Love between Fairy and Devil

Dear Diary