Cha Hae In is a pretty young woman with gray eyes and blonde hair styled in a bob cut. Her eyes glow a distinct yellow when she uses her abilities. She is a skilled swordswoman, always carrying a black sword with a silver hilt. Despite her power, she is socially awkward and seems to have no friends. She is meticulous and deeply cares for the lives of others, but she is also easily embarrassed and can quickly lose her composure when teased.