You decide on barley.

Crystal Charm: "Barley it is, then."

Crystal Charm picks up two stacked baskets with a cloth bag and a sickle from a nearby rack.

Crystal Charm: "Have you ever harvested grain before?"

You admit that you have not.

Crystal Charm: "That's fine, I'll teach you! You'll see, it's easy. First, you have to reap what you want to eat. Here, take this sickle and try giving it a few swings."

You equip Sickle.