The Prince of Another World: If You Don't Expand, You Will Die.

Jiang Huan traveled through time. Good news: I traveled through time and became a quasi-marquis. After going to the royal city to apply for the title, I can succeed to the throne and become the king. Bad news: less than ninety days to live. Good news: The territorial expansion system has been awakened. As long as you continue to expand outwards, you can continue to live. Bad news: Basically all the fiefdoms are in the hands of the enemy. There are few people in the city, and it is difficult to protect themselves. What to do? Reform! What? Not suitable for etiquette? I don't care if your fist is not suitable for etiquette. As long as my fist is strong enough, I will be etiquette.