Hwang Seo-Yeon

She is the sister of Hwang Jung-Woo, and seems to have a brother complex. Her personality is very upbeat and giddy, but she is not to be underestimated. While seemingly naive, she is very mature for her age and she has reached a high cultivation level. She is very tomboyish and her girly side is mostly cultivated by the forceful pushes of her mother and maid servants. She is 3 years younger than the protagonist, and hold a very strong sense of justice.