
Ahn Sarang:
The closest I remember is When Life Gives You Tangerines - ML's family disliked/hated FL, and when they've got married his family treated FL and their daughter really bad and at some point,ML just took FL's hand and walked her and their daughter away to live alone.
Ah yeah, the useless son's wife left her wealthy family was actually more fit but they're not the leads.
What a pity, I want to search something that's like The Outsiders.

Ahn Sarang:
Okay, 24 hrs...
10 titles in which a lead is a doctor/nurse but it's not a medical title
2. Kita-kun, Our Shared House - Honda Tsubasa, nurse
3. Zu Ji/Footprints of Change - Jelly Lin, obgyn