I visit the farm and im exalted with tillers but I dont see the option to buy it.
you dont 'buy' it... you do the quests and finally Farmer Yoon moves from your farm to the center of the town by the QM
--- Want any of my Constitutional rights?, ΜΟΛΩΝ ΛΑΒΕ
I come from a time and a place where I judge people by the content of their character; I don't give a damn if you are tall or short; gay or straight; Jew or Gentile; White, Black, Brown or Green; Conservative or Liberal. -- Note to mods: if you are going to infract me have the decency to post the reason, and expect to hold everyone else to the same standard.