Game of Thrones: Lord of the Dragonglass

"This is the story of an Earthling who crosses over into the early days of the Dance of the Dragons, carrying a space where time flows a hundredfold faster."

"This is the story of a minor noble with a territory of mere hundreds of households, whose bloodline will one day sit the Iron Throne."

"This is the story of a dictator who makes humanity remember the warmth of dragonfire once more."

Feudalism. Lordship. Knights. And Faith.