The Barbarian is Good at Farming

I died after being struck by lightning due to a goddess's mistake. When she offered me a new life as compensation, I prayed to be given a sturdy body so I could quietly farm in peace... “I never said I wanted to be a barbarian!” And not just any barbarian, but a barbarian farmer in a tribe destined for extinction due to a great famine six months from now. Since I can't afford to die again, I'll start by tilling the fields. [You have harvested Muscle Potatoes.] However, the crops I grow are unusual. The warriors who eat the potatoes grow stronger, and the starving tribe prospers day by day. I only farmed to survive, but before I knew it, I had become the Great Chieftain leading the st...