The male protagonist was once a modern special forces ace, but died during a retreat from a mission.
When he opens his eyes again, he has transmigrated to the first year of the Renshou era, reborn as an unborn baby in a wealthy family.
At the age of three, he awakens a System and begins learning martial arts.
By the sixth year of the Daye era, he has mastered exceptional martial skills and discovered a large, untouched karst cave and an exposed iron mine in a remote place.
After that, he asks his family for fifty retainers and gradually gathers nearly two hundred refugees. With the System’s help, he subtly shapes them into personal guards who will one day be loyal only to him.
At the same time, he successfully develops distilled liquor and starts a business selling it for profit.
Over the next few years, he secretly trains his troops while running his liquor business, quietly building both his wealth and military strength.
Three years later, his personal guards are fully trained, and their numbers have grown to five thousand.
Using “buying grain” as a pretext, he travels to Jinyang with plans to meet Li Shimin. The two share the same ideals and become close friends.
After returning home, he marries according to his family’s arrangements, holding the wedding in the middle of the year.
In the thirteenth year of the Daye era, he leads five thousand fully armed elite guards to Jinyang and formally joins Li Shimin’s uprising.
He then follows Li Shimin through campaigns across the south and north, earning distinction until the founding of the Tang dynasty.
During the Xuanwu Gate Incident, he steps in to help Li Shimin secure the throne.
With the realm pacified, he turns to supporting Li Shimin’s promotion of scientific inquiry, industry, and technical innovation.
Once everything is in order, he gradually withdraws from public life, feigns illness, and stays at home to avoid suspicion and distance himself from power, quietly watching the times change.
