Any drama where the ML has lower social/whatever status than the SML? Preferably, but not necessarily, something where the ML raises to the task rather than SML gives up the FL or FL does something. 

Healer . ML is basically a criminal and SML is the top jurnalist and FL's idol.

Also Flower Crew: Joseon Marriage Agency  (SML is a king), I Hear Your Voice  (SML is a lawyer, and ML is a student), Kimi wa Petto  (SML is a office worker and ML... well basically a dog), Pinocchio  (SML is reach, ML is not), Mary Stayed Out All Night and Trot Lovers .

Just between lovers 

East of Eden

Angels last mission love (ml works as the FL secretary and the SM is a director) 

High school love on 

  • +1  I Hear Your Voice
  • The Story of Ming Lan - the ML and SML are both from powerful families (they both studied with the FL and a few other children of elite families under the same tutor) but the SML is a golden only child whereas the ML is the black sheep of his family and pretty much written off by everyone. The SML sort of gives up the FL (he's not brave enough to fight for her at a critical moment) but the ML definitely also rises to the occasion.
  • I Need Romance 3 -the SML is the FL's senior and mentor at work and the ML is a guy who she babysat when she was a kid who moved abroad and became a DJ.
  • Witch's Romance - I'm not 100% sure I'm recalling this correctly, but I think the SML was a doctor but also a famous photographer? Or he was a famous war correspondent / photographer? Something like that. Anyway, the FL is a journalist and the ML is several years younger than her and runs an errand boy business with his friend. He also dropped out of medical school.
  • Dream High - the ML and SML both attend the same performance-focused (singing, dancing, etc.) high school with the FL, but the ML is a country bumpkin. 
  • Dreaming Back to the Qing Dynasty - the  ML and SML are both princes, but the SML is older / more senior. 
  • Meow, the Secret Boy - the SML is human and the ML is a cat.
  • The King in Love - the SML is secretly the emperor and the ML is his cousin and best friend who acts like his body guard.
  • Who Are You: School 2015 - ML is the son of a mechanic and the SML is the son of the school principle. This one gave me serious SLS.
 martar:

Healer . ML is basically a criminal and SML is the top jurnalist and FL's idol.

Also Flower Crew: Joseon Marriage Agency  (SML is a king), I Hear Your Voice  (SML is a lawyer, and ML is a student), Kimi wa Petto  (SML is a office worker and ML... well basically a dog), Pinocchio  (SML is reach, ML is not), Mary Stayed Out All Night and Trot Lovers .

"basically a dog" LOOOOOL 

  • When the Weather Is Fine- ML is an ordinary small town book store owner . SML rich chaebol type
  • When the Camellia Blooms- ML is a small town police officer while SML a rich  famous baseball player and the baby daddy.
  • The story of Ming Lan- ML has bad reputation/looked down upon despite a prominent family background while SML comes from a notable family and seen as an upstanding  gentleman
  • The Romance of  Hua Rong- ML is a pirate king while SML is the  prince so there is a difference in terms of status and morality
  • Hwarang - ML was an orphan who turned out to be royalty and became a hero. SML was a crown prince

• Jejoongwoon (ML has lower status than everyone)

•Nokdu Tale;

• Just Between Lovers;

•Money Flower;

• Chocolate;

•Encounter;

•Life.