I was wondering if there are any preferably (but do not have to be) romance movies and dramas that deal with the subject of depression? 

Himizu (Japanese Movie)

i didn't watch it but "me too, flower" based on description

-My SO Has Got Depression (Japanese). I really really love this movie, and hope you'll enjoy it as well :)

-Project S: Skate Our Souls 

A little late but I just wanna add...

Dramas:

  • Kingyo Club - FL is being bullied but i think the more depressed character is the ML
  • Snow Queen - both MC and they have different way of manifestation
  • Misaeng - MC is lost depressed type
  • Scent of a Woman - ML is definitely lifeless and depressed
  • Just Between Lovers - ML going through the motions and is quite destructive of his own body
  • Mainly about some disease thus results in depression of MC:
    • The Hours of My Life
    • Thousand Days Promise


Movies:

  • Bleak Night
  • Thread of Lies
  • Maunday Thursday
  • Han Gong Ju
  • A Moment to Remember
  • Moon Gayoung
  • Dear Friends

✔️ 49 Days

I know more shows about other psychological issues 

✔️ Kill Me Heal Me (multiple personality disorder) 

✔️ It's Okay It's Love (schizophrenia) 

✔️ Flower Boy Next Door ( agoraphobia) 

✔️ Shoot Me in the Heart (schizophrenia) 

✔️ I'm a Cyborg But That's Ok ( schizophrenia) 

The happy loner (not clinical depression)

Freeter, Ie o Kau. --mom gets clinical depression and the whole family has to come to terms and help her.

It is also known as "Part timer  buys a house"

 Laura19:

i didn't watch it but "me too, flower" based on description

Yes! It's one of my faves, FL has depression. I highly recommend this one.