Potential names: The samurai could have a name that reflects his past, like Kaito or something. The cows could be named for a touch of humor. The antagonist could be bandits or a supernatural element.
Character development is important. The samurai could have a tragic past, and the farm is his sanctuary. The problem might be a threat to the farm, like raiders or a curse. Using drunkenness as a way to confront this threat in an unexpected manner. Milking Love -Final- -Samurai Drunk-
Possible plot points: Samurai retires to a farm, faces threats, uses wine to lower inhibitions, uses the farm's resources creatively to win. The final battle is a chaotic mix of samurai sword skills and drunk antics, ending in victory but personal sacrifice. Potential names: The samurai could have a name