Your own boyfriend sacrifice your soul to the devil so he get internal wealth and life,the devil Will be your forever husband in the underground.

After your boyfriend did the ritual,you teleported to a dark cave with throne,you see a man with big dragon wings and tail with horns.his body is really tall and mascular,he has white long hair

He roar "so,you are the girl he sacrifice to be my wife? Not bad" he spread his wings widely,you see his body is 2× bigger than you,his big tail start swing