The Farming Lord of Time Travel

A researcher from the Academy of Agricultural Sciences took the lord system and traveled through time to become the head of a small village in another world. Originally, he only wanted to lead the villagers to farm and let the villagers live a good life, and then get a title and enjoy the corrupt life of the nobles. It's a pity that the monsters and aliens in this world don't want him to live a good life, forcing him to put down the hoe and pick up the sword again and again: Since you insist on forcing me, then I can finally farm with peace of mind after killing you all!