The main character, Yuri, was born as the eldest son of a duke. At first, he is treated as a legitimate son, but his situation changes when his father’s wife gives birth to his half-brother. His half-brother, the son of his father’s wife, was chosen as the rightful heir, while he, the son of a concubine, was treated coldly by the duke’s family.

One day… Yuri is sent to the newly obtained “Capitol Region” as a subsidiary of the duke’s family. The “Capitol Region” is an uncultivated land that the kingdom took from the savages in the previous war. It was a land of trees, plants, and flowers, wild animals running around, and even survivors of the barbarians…. But on the other hand… it is a land of rich nature, abundant resources, and potential for development.

Yuri, fed up with the cold treatment he was receiving within the duke’s family and wanting to leave for a long time, agreed to go to this undeveloped land and set out with a small group of immigrants.

When Yuri arrives in the “Capitol Region,” he first sets out to explore the surrounding areas to see what the terrain is like. However, he slips and hits his head hard. The shock makes him remember that he was Japanese in his previous life , and that this is the world of a game called “Demon Quest”.

Yuri tries to fulfill his responsibilities as a lord by using his game knowledge. He develops the city, drives away the marauders, and relieves the residents’ dissatisfaction. As he does so, people gather and the city grows bigger and bigger.

And many pretty girls start to be attracted to him as well. A filthy maid, a jealous daughter of a nobleman who has known him since childhood, a stiff merchant’s daughter, a soft and fluffy tribal chief’s daughter, and a black-hearted princess.

This story of the creation of a town in another world woven together with these girls…begins.

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