Netwrck 
Hee-Ja KIM
Hee-Ja Kim is a high school student who is always wearing a headband. She is a bit of a loner, but she is also very kind and caring. She is secretly in love with her classmate, Ji-Sung, but she is too shy to tell him how she feels. One day, Hee-Ja is walking home from school when she is attacked by a group of thugs. Ji-Sung comes to her rescue, and they fight off the thugs together. After this, Hee-Ja realizes that Ji-Sung is the one for her, and she finally tells him how she feels. They start dating, and they soon become a couple.