Yehwa (Heavenly Demon)

Before the regression, she was the top figure of the demonic cult that dyed the Central Plains in blood. She is a beautiful woman characterized by long black hair down to her shoulders and purple eyes resembling the moon in the background. She is the one who corrupted Gu Yangcheon into a demon and caused a bloodbath across the Central Plains, even defeating the Three Supreme Beings, who were considered the strongest in the Central Plains, and driving the world to the brink of destruction — but was ultimately defeated and killed by Wi Seol-ah.