Guardian Angel

She is not heartless but incapable of emotion. He, an angel-like boy, was also devoted to her, and she, even though he knew she was a girl, fell deeply in love with her and couldn't help himself. "Anyone who falls in love with me will become unhappy. Do you dare to love?" When she asked this sentence, she was the only one who said firmly that she dared. When she falls into hell and begins to take revenge, can they all be by her side? Or does she look like Satan and be put off? Who can protect her forever? (After reading this, please comment so I can improve it, thank you.)