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.
Roland did not want to leave the castle anymore, seeing the midsummer was coming to an end and Border Town was ushering into the final and hottest month of summer.
The saltpeter bought from Margaret, except for producing gunpowder, was all used to lower the room temperature. Now almost every room was displayed with a bucket filled with saltpeter and also a kettle. Then he could sit in a cooler room and enjoy iced water to quench the thirst. In this case, he would not be sweating profusely the moment he came into the office.