Supreme Devil Lord: I Can Refine All Energy - Chapter 19: Determined

A weary historian dies and finds himself in a different world awakened in a life as the notorious young Duke of a southern state. His nation is weakened, his army underfed, and his neighbors revolve around his lands menacingly. No one believes his land is going to hold out until winter.But this newfound duke is no naive simpleton his enemies recollect. He carries with him the experience of centuries of war and empire, of starting and ending monarchies. From Caesar to Napoleon, from the Mongols to world wars, he has learned from each of them—and his strategy is to make history his very own arms.He organizes his smashed levies into well-trained formations, rebuilds his castles, and turns his villages into supply centers. Where others see defeat, he senses opportunity. As he triumphs, rumors spread: of a pennant red as winter snow that shall not go to ground, of a bloody duke who writes his name in gore and flame.Is he a savior who's constructing a new empire, or a tyrant who's going to bring the world to endless war?

More than ten years later, this sentence gradually spread in Elbaf Continent:

Never use magic to deal with tyrants, because you will find that he will return your spells to you thousands of times after being strengthened by countless magic specialties.

This is the story of a dragon-shaped self-propelled fort that keeps doing things in another world.

There is nothing that one magic can’t fix. If there is, then there are more. ——Izawa

- Description from novelbuddy

Crossing into another world, Shen Yuan unexpectedly picks up a mysterious Turtle Shell in the river, activating the [Daily Hexagram] system bound to his family.[Today's Hexagram · Auspicious]: You pass by the Black Water Pool and unexpectedly encounter a Centennial Blood Toad shedding its skin. The shed skin has extremely high medicinal value and can be sold for two hundred Patterned Silver taels.[Today's Hexagram · Great Ominous]: A Barbarian Race scout team sneaks into Hidden Dragon Mountain. If you go into the mountain to chop wood, you will encounter bloodshed.[Today's Hexagram · Auspicious]: You take your son to hunt in Hidden Dragon Mountain and will have a good opportunity.[Today's Hexagram · Great Auspicious]: You spend a fortune to purchase a piece of land from the County Government, which hides a Lower Grade Spirit Stone Ore Vein.