Obnoxious Wig of the lead female

I loved the drama and the male lead. It started well, but then went on too slow & dragged. The male lead Wallace Chung is worth a watch, the way he portrayed all emotions of love was fantastic. I rewatched the series only to watch his love and angst scenes. But the most disappointing thing in the entire drama was the ugly wig and a bit of bad costumes of the female lead. I honestly felt there would be a change of hairstyle at some point, however it came only towards the end. Overall good story