Tired, not much explanation.

You unlock 'Manage Thy Kingdom' after completion.

If you search the bookcase south of Queen Sigrid, you get a book, "Managing The Kingdom For Noobes" that gives a light explanation of how to manage the kingdom.

Ahh, I'm afraid we already list the unlocking of the "MTK" Activity in the rewards section of the quest guide. As for Advisor Ghrim's book, it only briefly describes the basics behind MTK, and anyone reading the quest guide would be better off simply following the link we provide to our MTK Activity guide, which gives a far superior explanation while still being short. I'll add a note to the "Tips and Tricks" section though, to be thorough. :)

 

Cheers, and thanks for your time.