The Sinister Young Master's Domineering Love

If angels are destined not to be with demons, then let angels influence demons and turn demons into angels. When angels are together, are they destined to be happy? Why is my fate not like that? There was an agreement, but when I really fell in love, I found out that the agreement was just a scam. When they decided to fall in love and be together, they were told that they were brother and sister. , When all the difficulties were solved and they planned to be together, they found that the angel had broken its wings and the devil had disappeared! So what to do? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.