Beauty and the Beast [A Nanatsu No Taizai Fanfic]

Prologue

This is a tale of ancient times......

When the human and non-human worlds had not yet divided. 

There once lived a demon, eternally hidden by the shadows, with a mark above his eye- teasing him for all of his mistakes in the past. He made friends, but he concealed his true power. Every day, he became more and more like his past self, and he couldn't help but go insane. 

One day, it was enough. He couldn't help himself. He'd had enough. 

Every drop of power imploded out of him and surrounded him, making a true beast out of a kind man. His friends ran away, screaming for help- disbanding, fleeing the crime scene. He destroyed a country- and his himself away in a castle far far away. As a keepsake, one person, his close friend, Merlin, took their memory of the man, and hid it away where it was stored in a rose. If anyone could grow to love a man who had done such a terrible thing to his friends and to a country- then the spell would be broken, and his power would be reduced to merely a defense mechanism. 

And this- is where the story starts. 

Right, Sir Meliodas?