Father! I'll Just Keep Growing! You Resist First!

[System + Farming + Hegemony + Fiefdom] [Some modern products will appear, but there will be no guns or guns, so please enter with caution! What would you do if one day you traveled through time and became a prince... Apocalypse Continent is full of nations! In the peaceful years, the appearance of one person completely changed the world! Since you have a new life, then live your life! Conquest is the main theme that this person brings to this world! Let's see what the protagonist does after time travel...