He traveled through time and became a declining noble, with only a broken castle and 300 people waiting to die in his territory.
There is no system, no plug-ins, just a brain of modern urban planning knowledge.
Deep in the mine, he accidentally awakened a dragon cub that had been sleeping for hundreds of years.
The little girl opened her ice-blue eyes, and her first words were: "Human, you will be mine from now on."
From then on, he was responsible for farming, doing economics, and playing tricks;
She is responsible for eating, growing up, and burning all the enemies she dislikes.
Just keeping it up, things gradually went wrong——
"Contractor, I have knocked down the castle in the kingdom next door and gave it to you as a birthday present."
"... I'm just asking you, have you finished your homework?"
