Cheng Yan travels through time, only to end up becoming an honorable prince in the Middle Ages of Europe. Yet this world was not quite as simple as he thought. Witches with magical powers abound, and fearsome wars between churches and kingdoms rage throughout the land. Roland, a prince regarded as hopeless by his own father and assigned to the worst fief, spends his time developing a poor and backward town into a strong and modern city, while fighting against his siblings for the throne and absolute control over the kingdom. Join Roland as he befriends and allies with witches and, through fighting and even farming, pushes back invaders from the realm of evil.
Now it was time to hear the report from Acting Minister of Chemical Industry, Kyle Sichi. Kyle started with a snort and said, "Your Highness, I hope you can find a real minister as soon as possible. I don't want to take part in this kind of meetings anymore."
"..." Rolland rolled his eyes at Kyle in his heart. How could the prince easily find a man who had an understanding of both alchemy and chemistry to replace Kyle in this era? Since he had become a leader, he had gradually realized that he had to ignore some opinions sometimes, such as what Kyle had just said. Without showing any displeasure, Roland asked Kyle, "Do you have a clue about the mass production of two kinds of acids?"