During his first 3 years in the 'game' so have Luk gotten to know really good general knowledge.
Luk is working for the Meides family of the Mayfly kingdom a medium sized baron family in a medium sized kingdom. The Mayfly kingdom is one of the many kingdoms of the strongest and biggest empires on this continent, the Dawn Empire.
On this continent it exists 4 Empires and 2 sects. Their strength is in the following order: Day Dao Sect, Night Dao Sect, Dawn Empire, Noon Empire, Sunset Empire and Midnight Empire. The Dawn and Noon Empires are under the Day Dao Sect while the Sunset and Midnight Empires are under the Night Dao Sect.
It is said that the name of them comes from that: "In dawn a new day with newfound strength begins, by noon you are at your strongest, by sunset you starts to rest for your strength to come back by the next day and by midnight are you resting and are in tip top form." So while the Dawn and Noon Empires are representing newfound and maximum strength so do the Sunset and Midnight Empires represent to take it easy but always in tip top.
The Day Dao Sect is a sect which focus on always being the best and strongest their by the name "Day" in Day Dao Sect while the Night Dao Sect focus more on always being in tip top and taking it slow their by "Night" in Night Dao Sect.
And to join those sects you need to fulfill the same criteria for both of them, so while ONLY the top 40 000 of each [JOB] gets taken in each year you need to know that that is still the best of the best the continent have to offer.
To be recognized as the smallest kind of Empire so do you need 160 000 Kingdoms under itself, to be a kingdom you need 6.25 Million dukedoms, and so on and on, that means the smallest Empire in existence is: people at minimum, or rather MORE than 4 Decillion but less than 4 Undecillion[1]. And that is the smallest amount of people to be recognized as an Empire so you can only think about how many geniuses there is, it is also said that the Midnight Empire the weakest of all the Empires still is 5 ~ 6 TIMES a much.
And because of how many [JOB]'s that exist so is 40 000 of each [JOB] some tens maybe hundreds of millions of people.
It is also said that our continent isn't the only one in this world but only the top 100 of each sect can visit them because of the costs involved to go between them, because of that so does our continent not have a name as far as the general public knows neither does our world, since most people will never go father out than the empire you resides in.
[1] https://www.thoughtco.com/zeros-in-million-billion-trillion-2312346