Strangers  

FL as a detective or FL as a doctor

Doctor


ML is a CEO or ML is a normal office worker

ML is a normal office worker

Contract marriage/relationship or Arranged marriage?

Contact marriage

Zombie drama or ghost drama

Zombie


In historical drama, ML seeking revenge to FL's family or FL seeking revenge to ML's family

FL seeking revenge on ML

ML being flirty or FL being flirty

ML's parents happy if he wants to marry a nice woman with ordinary qualitities


Sismance or Bromance

Bromance


Siblings bond or Bff bond

siblings bond

amnesia or terminal illness

FL being tomboy


ML being introvert or ML being quirky

ML being introvert

ml being pevertly cute or ml who knows nothing

ml who knows nothing


FL who had one-sided love to ML for a long time or ML who had one-sided love to FL for a long time, 

before they finally got mutual love relationship