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.
Neverwinter was busy preparing for Roland's coronation ceremony.
After releasing the news, the king left the whole thing to Barov. The City Hall Director devoted himself entirely to the preparation job and strived for perfection in every detail. He even fetched Blanche, the ceremonial officer, from the old king's city to assist him.
As for Roland, apart from occasionally checking the progress of the magic movie, he spent most of his time on the final design of the internal combustion engine.
Because of the difference in measurement systems between the current world and his previous world, he needed to conduct a stability test for each prototype he made to make sure that his design was accurate. Furthermore, since the quality of the oil separated by the fractional process was very unstable, he had to adopt a redundancy design method. Without computer simulation techniques, he had to adjust the prototypes repeatedly.