Bai Ruoyi, a black-winged angel from the long-destroyed Zhoumu. By chance, she came to Erzhoumu with a broken heart. However, due to the influence of "terror" and "color", her character was very unstable at first, which gave rise to another personality - an evil personality with destructive tendencies. But with the help and companionship of her teacher and other students of Kivotos, she gradually came out of that shadow. In the end, the two personalities reached a reconciliation, and her personality gradually returned to normal. It seems that she is about to usher in a new life, but in the final chapter, she has to face "color" again in order to protect the people she cares about...