The Cruelest Man in the World of Dragons and Magic!

Not long after Ren traveled through time, he realized that he had come to a world where humans were inferior to dogs. Dragon knights fly in the sky, wizards laugh in towers, and poor people crawl in the mud. To make matters worse, the Ma tribe bandits come to "harvest" every three months - if you can't hand over the food, your family will be hanged. He tried all modern knowledge, but all failed. The guilds monopolized, the lords exploited, and even boiling water was scolded as a waste of firewood. —————— Until that night, more than a dozen dragons fell into Blackstone Canyon. Other poor people were stealing dragon scales, but Ren was eyeing the corpse of the dragon knight. A crazy idea exploded in his mind: If the power of the Dragon Knight is hidden in the blood... If this blood is transfused into my body... Simple reed rods were used as blood vessels, and dead knights were used as "blood bags." When the severe pain tore his soul apart, he held onto the dragon's whip that had burned him—— This time, the whip was no longer scalding hot. "Now, it's my turn to make the rules of the world!"