Shisan Udon has introduced new menu items priced at 399 yen, including a kake-udon and onigiri set [1].
This pricing strategy allows the chain to offer budget-friendly meals during a period of rising costs. By implementing a new business model and a low-cost onigiri production system, the company aims to maintain these prices for its customers [1, 2].
The rollout occurred in two stages. A limited release began April 16, 2026 [3], followed by a nationwide expansion April 23, 2026 [4]. The new offerings include two specific 399-yen items [4]: a kake-udon and onigiri set, and a donburi known as Shisan Tama-don [1, 4].
In addition to these sets, the chain introduced 48 new varieties of cold noodles [4]. These items are available at Shisan Udon restaurants throughout Japan, though the LaLaport TOKYO-BAY location is excluded from the rollout [5, 6].
The chain, which originated in Fukuoka, is leveraging these cost-saving measures to scale its reach while keeping entry prices low for diners [1, 2]. The company's approach focuses on the efficiency of the onigiri production system to offset the lower retail price of the sets [1].
“New menu items priced at 399 yen”
Shisan Udon's move to implement a specialized low-cost production system for onigiri suggests a shift toward operational efficiency to combat inflation. By anchoring the menu with high-value, low-cost sets, the chain can attract budget-conscious consumers while diversifying its seasonal offerings with nearly 50 new cold-noodle varieties.





