Diiron is a small dim sum restaurant in Yeonnam that serves xiaolongbao, beef noodles, and tantan noodles. The xiaolongbao wrappers are made to order, and the beef noodles come with tender meat. Customers order and pay at a kiosk at the entrance before going in, and the owner handles both cooking and serving alone. The space is small, so a wait forms during meal times.