We added domestic whole soybean soy sauce, Aioi Sakuramoto mirin, and sugar-made kaeshi (kaeshi), all made from Makurazaki's bonito flakes. The natural umami of soy sauce is skillfully complemented by the delicate deliciousness of carefully selected domestic ingredients, creating a deep, crisp, and crisp broth. The local Tajima specialty 'Izushi Wanko Soba' also uses kaeshi made with Daitoku-soy sauce. No matter how many bowls you eat, you never get tired of it. We bring our secret broth, passed down directly from a soba master, to your table. A piece on the dining table. It's essential for hot pots, sashimi, and grilled fish. Also great as a base for salad dressings! *No genetically modified ingredients are used whatsoever.