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 watched the second cement boat slip into the water with satisfaction as his subjects cheered loudly.
The two cement boats looked simple in terms of structure, but they were actually much better than previous models, namely the Little Town. A framework of dense steel reinforcement had been added to the internal structure, and the quality of the cement had improved tremendously. The overall strength of the boat was thus several times greater than the Little Town.
To expedite the shipbuilding process, Roland reserved slots and ports for steam engines, transmission mechanisms and paddle wheels when he designed the hull. This way, laborers only needed to weld bolts into the metal components. They could quickly build the boat putting pieces together like a jigsaw puzzle.