i am looking for a melodrama movie that the two Both leads ( man and woman ) are arrogant some how . . BUT When the girl meet the guy she become nice and cute like the beginning of A Werewolf Boy movie the girl was bad and when she met the guy she got nice and happy ..
Me Too Flower
Nice Guy
The Wedding Scheme

Although I haven't finished Nice Guy and TWS, all three have arrogant leads who don't get along because of their personalities.