Saved by an angel son

Diana was the only daughter of Albert Wilson, she lost her hope of living when her parents died, she remained indoors refusing to accept the fact that her parents was no more.
Robin, her uncle took her to college for her to start up a new life. At the college she meet a gorgeous young man named Edward clan who was the second son of Clan Mitru, his sister's were Uriah and Rabel while Micheal being the second son.

Michael was a demon while Edward and his sister's were angels, there purpose on Earth is to protect those who haven't been baptized as Micheal not being the only demon on Earth.
Diana was one, she was never baptized even in her first death when she was betrothed to Edward for centuries ago, now she was incarnated as human again while Edward an angel but the fallen.

He was cursed never to touch any girl, because he refused to side his father who rejected Micheal his brother because of his demonic nature, since then Michael developed a great hatred towards his brother and sisters too.
Now he's against Edward mission as he is now working for Lucifer who is bored and unhappy as the Lord of the hell