Lovers in bloom - male lead is a little stand off-ish but is a pretty stand up, loyal, honorable and helpful guy while 2nd lead is the jerkiest of jerk that is selfish and greedy and petty. He tries every whicn way to steal her away. This is a very very longe drama, 120+ episodes of 30minute duration.
Lingerie Girls 1979 - the girl likes the guy who is considered as the Kingka who is popular and smart, but compared to the other guy who is like an adorable puppy in his adoration to the girl, he can be seen as far from his good boy image in a couple of times.