Light Novel (Other) A Curious Craftsman's Wandering World (4) AlphaPolis

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Ryoichi Ishikawa, who became a viscount of the Kingdom of Cales Laia, was praised for his numerous achievements during his travels, and was given a small village surrounded by forests as his territory. Ryoiti made good progress in managing his territory by improving water supply and electricity infrastructure through the use of ancient super-cultural artifacts, as well as land readjustment and the construction of a feudal lord's residence. One day, at the request of the Fifth Princess, he went to the neighboring マーランド Empire. However, there were some disturbing movements within the Empire?