Dragon of the past

Leticia Simpson had ran away from her engagement ceremony which her parents had forced her to get into, just for money. She ended up in a fight between three thieves and a soldier, which got her drowning into another life. Another world: nine hundred and ninety nine years ago...
General Devon Ciel , a warrior and a powerful man, mightier than the king; rumoured to be the child brought out from the serpent's mouth.
He had fought and won; but be his life had to make a twist when Leticia was thrown into the past to become his wife.

What would happen when his brother Devan Ciel also falls for this modern girl?