Shi Yi was once feared by men as a bloodthirsty demoness, killing hundreds. No one could stand in her way. But scared of the woman she'd become, Shi Yi's treasured blood slave Yi Ling stabbed her and imprisoned her in ice. Now 200 years later, Shi Yi is free from her prison but with no knowledge of who she is. Still plagued by blood rage when she uses her powers, she finds her way into the care of the seemingly familiar Hua Yu Tang, who promises to heal her from this mysterious ailment.