After Ed was hit by a dump truck and died, he opened his eyes and found that he had become a member of the Karstark family and awakened [Lord] Goldfinger.
At this time, the Young Wolf Lord had just led his troops to defeat the Regicide.
During the war, Ed relied on strategy, bravery, and the help of Golden Finger to successfully save the tragedy in the North. He convinced the Young Wolf Lord, gained territory, and became an earl.
When the war ceased, Ed relied on cunning, decisiveness, and more knowledge to successfully overwhelm his vassals and make him the only voice in the territory.
Many years later, when Eddard became the king of Westeros and the colony of Essos, destroyed the Iron Throne and got himself a Golden Throne, the more secret power of this world suddenly broke out! !
The details are posted in the original novel and the Game of Thrones series, but when it came to the writing, I had to make it all up myself.
