Lee Sang-yi

A big-city dentist opens up a practice in a close-knit seaside village, home to a charming jack-of-all-trades who is her polar opposite in every way (imdb)

In order to pay off their debt, three daring youths jump into the money-lending business while confronting the rich and powerful who prey on the weak.

A pitiless demon becomes powerless after getting entangled with an icy heiress, who may hold the key to his lost abilities -- and his heart. (imdb)

In May, 1980, during the turbulent times of the Gwangju Uprising, Hee-Tae and Myung-Hee fall in love. Their love seems destined by fate. (imdb)

No Gain No Love tells the story of Son Hae-young, a woman who got married because she didn't want to lose money, and Kim Ji-wook, a man who became her husband because he didn't want to cause harm. (wikipedia)