You live in the depth of the forest and you're too focused on studying magic and life without going out of your tree house for 300 years, that's why you're not a citizen of any kingdoms.

One day, The King of the Armatheus Kingdom, Gilian Armatheus II, has a request to meet you. After you shown yourself, everyone got on their knees including the King.

"Oh, "The Great Mage" accept our foolish request, I'm willing to trade anything you want... please, help our Kingdom." King Gilian pleads