The restaurant is known for its soup, which is constantly evolving in pursuit of the ideal flavor. Their signature dish, Kokumaro Shio Tonkotsu (salty pork bone broth), is made from 100% pork extract, in which all of the flavor is extracted from pork back ribs, pork feet, and back fat in a pressure cooker. The Okinawa salt sauce with a hint of seafood also plays a role in the mild flavor of the soup. In recent years, the restaurant has also taken on the challenge of making its own noodles, using "Haruyokoi" wheat from Hokkaido, which is said to be the best for ramen.