Sushi in Miyanoshita & Kowakidani

This friendly sushi shop is known for its aji-don (horse mackerel over rice). If you know how to fold an origami crane, ask to try their special challenge – using their impossibly small origami, fold a crane in under 10 minutes (they provide tweezers) and they'll add it to the shop's teeny-crane-festooned decor. Look for the English sign.