"The Emperor's Spirit," this is a quest for the throne!
Drawing this conclusion, Hudson was taken aback. However, the Extraordinary World is filled with various forces, so someone cultivating the Emperor's Way isn't all that surprising.
A Monarch must spend a considerable amount of time daily handling state affairs, leaving them little time for cultivation; apart from the Emperor's Way, success through other paths is hard to achieve.
Throughout the history of the Continent of Aslante, kings who can reach the Sanctuary are few and far between.
The Founder of the nation before him not only entered the Sanctuary but has traversed a long distance down that path, showing strength surpassing the other two old antiques Hudson had encountered before.
Having enjoyed a robust reign on the throne while overseas for three hundred years, it's no wonder this one can't hold it any longer.