Many installments in the Atelier series involve getting to know the shopkeepers of the realm as friends and confidants, not just people who sell you stuff.
After all, a good alchemist always needs plenty of ingredients — and if you have a good buddy happy to slip you a few freebies now and again, then everyone’s a winner, right? Particularly if your alchemy is making life better for the kingdom as a whole.
Such is the relationship between the titular princess from Atelier Meruru and her good friend Hanna, the latter of whom lives a fruitful life alternating between picking any old crap up off the side of the road, and selling said crap to any passing mug.