A delicate sweetness and deep umami that elevates every bite — without ever overpowering it. Not too salty. Quietly complex.
Especially at home with fish and sashimi — where its mellow salt and quiet sweetness let the ingredient lead.




Our name is no accident. Every bottle is slow-infused with hokki-surfclam, the prized surfclam of Hokkaido's cold northern waters — the source of that deep, oceanic umami you can't quite place, and the reason it never tastes harshly salty.

Surfclams gathered from the chilled Pacific shoals off Tomakomai, at peak sweetness.

The clam essence is steeped into traditionally brewed soy, drawing out a rounded marine umami.

Left to mellow until salt and sweetness settle into balance — then bottled by hand.


Order a bottle for the kitchen, or stock it on your shelves. Either way, the umami speaks for itself.
Case pricing, sampling, and import details for partners across the U.S.
Japan's northernmost island — cold seas, clean air, deep snow, and some of the country's most coveted seafood. Everything in this bottle begins here.
Long winters and chilled coastal waters that concentrate flavor in everything they raise.
Wheat and soybeans from volcanic soil; surfclam and kelp from the Pacific shoals.
Our home port on the southern coast, where the brewing and the infusion happen.
On the southern shore of Hokkaido, the port town of Tomakomai meets clean, cold Pacific waters. It is a place of patient seasons — and patient craft.
Here, ingredients drawn from Hokkaido's land and sea are slow-brewed by hand in the traditional way. The result is a soy sauce with rounded, mellow salt and a soft natural sweetness — built for fish, sashimi, and the quiet meals in between.
Ingredients from Hokkaido's land and sea.
Slow-fermented by hand, the old way.
Nothing but what belongs.
Round and deep, never sharp.
The brewers and fishers of Tomakomai who bring this soy sauce to life — their story is on the way.
COMING SOON