Chu Li thought that the thing she regretted most in her life was to hurt someone whose existence was more important than her life for someone who was not actually very important. This made her unable to live in peace after her death, until she saw with her own eyes the humiliation that person suffered for herself. She thought that if she could do it all over again, she would definitely let them get the punishment they deserve for what they had done, and say these long-overdue words to that person - I'm sorry, I love you...