The joke is that Al gets god-tier powers through crop rotation while actively not wanting them. Every fight scene is him desperately trying to farm instead of saving the world, and the show never blinks at how absurd that is. It's a parody that actually respects its own premise hard enough to make it funny, and the English dub leans into the chaos with perfect timing. Some viewers will check out immediately because the pacing is a mess and the tone swings wildly. For everyone else, it's the exact kind of unhinged that makes isekai parody work.
Al Wayne has a simple dream: become a farmer. While most adventurers chase glory and power, he's content perfecting crop rotation and animal husbandry. But something strange happens as he levels up his agricultural skills. Each harvest mastered, each soil technique perfected, pushes his overall stats skyward. Before long, Al realizes he's become monstrously powerful, rivaling the strongest warriors in the land, all because he was obsessed with making better vegetables. The problem is that the world won't let him enjoy his peaceful farm life. Demons and monsters invade the realm with increasing frequency, and people keep expecting the clearly overpowered guy to save them. Al wants nothing more than to tend his fields in quiet contentment, but staying true to his farmer's heart while monsters threaten everything he's built becomes an impossible balancing act. This is a comedy about the absurdity of strength found in the most mundane pursuits. It's for anyone who appreciates slice-of-life warmth mixed with unexpected action, and characters who'd rather garden than conquer.