Yadoroku is a Japanese restaurant in Asakusa that sells onigiri and misoshiru. It serves onigiri made with grainy rice scented with seaweed, filled with mentaiko, shirasu, or soy-marinated shrimp, and the lunch set includes misoshiru. Inside the shop, you write your name and return at a set time to state your order, and only cash payment is accepted. Tables turn slowly, so the wait can approach one hour.