Charming obsessive ML, forceful/scheming obsessed SML, ended up with ML, all SMLs labeled as main roles.
Delightful Girl, Choon Hyang
If I Can Love You So
Lost You Forever
Queen of Tears
Snow Angel (but FL doesn't end up with anyone)
To The Moon and Back (in this drama, SML want to have FL but not exactly fall in love with her)
SML labeled as support roles but significant for the storyline:
Secret of Shadow Sect
Adding a dark romance movie, ML is obsessed but doesn't really show it, SML as support role but significant and have a lot of screentime:
Wandering