System: Build My Own Territory

One day, Lynn transmigrates to become an illegitimate son of Marquis Duca from the Karedi Empire.
His father only gives him a patch of wasteland as his coming-of-age gift, and his eldest brother even orders his followers to kill him just to ensure that the hereditary title would not fall to Lynn.
How could he survive in this difficult situation?
In desperation, Lynn awakens his system, which allows him to build his own territory by his own efforts.
[Weed removal successful, Collection Experience +1]
[Obtained linen*1]
[Obtained linen seeds*1]