Kodaimae Hanayama Udon Nihonbashi is an udon shop that moved from Gunma to central Nihonbashi in Tokyo. Its main dish is flat, thick noodles called himokawa udon, and curry udon and fried shrimp are also available. Customers write their name on a waiting board outside, then order by QR code. Table turnover is slow, and on a weekday evening at 7 p.m. the wait was one hour.