Nagoya, Midori Ward · Since 2025

Kikumusubi

"Crafted with Koji. Made with Love."

Discover Our Story
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What is Koji?

Koji (麴) is a living culture — Aspergillus oryzae — the mold behind miso, soy sauce, sake, and mirin. Japan has relied on it for over 1,000 years. Not as a supplement. As the foundation of everyday food.

At Kikumusubi, koji touches every part of the meal:

  • Shio-koji — makes every grain plump, soft, and deeply savory
  • Soy koji — tenderises even large cuts of meat while drawing out more umami
  • Seasoned with aged miso, hon-mirin, and real fermented condiments — no refined sugar
  • Daily koji soup — warm, living, made from scratch

No additives. No shortcuts. Just koji, rice, and care.

Koji culture in the hands of our makers

Not a trend. A 1,000-year Japanese tradition — alive in every bowl, every grain of rice, every filling we make.

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Deep Flavor, Less Salt

Koji enzymes unlock umami from within — converting proteins into free amino acids naturally. The rice tastes complete. No enhancers, no shortcuts.

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Food That Works for You

Miso, koji, living soups — fermented foods support the gut microbiome long after the meal ends. Easier to digest. Quietly nourishing.

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Named Ingredients Only

Organic miso from Marukawa Miso, Fukui. Open-range pork from Hiraboku Farm, Yamagata. Every ingredient has a name, a place, and a reason.

Zero Additives

Koji preserves. Koji flavors. Koji colors. When fermentation is your foundation, there is simply nothing left to add.

Kikumusubi exterior
Dining space
Counter seating

Our Story

Kikumusubi is run by three mothers in their 50s, raising eight children between them in Nagoya's Midori Ward.

Our story begins not in a kitchen, but in the sleepless nights of raising a child with severe eczema. Watching a baby scratch until bleeding, wrapping tiny limbs in bandages, navigating a world of food allergies — no meat, no eggs, no dairy, no seafood, no rice at times — taught us everything about what it truly means to nourish someone you love.

Those years sent us deep into the world of whole foods, macrobiotic cooking, and the quiet power of koji fermentation. We learned that real health isn't found in sterile, additive-filled convenience — it's found in living ingredients, honest hands, and meals made with intention.

One of our founders later faced a serious autoimmune illness that left her unable to grip, walk steadily, or even speak a full sentence. She recovered, beyond what her doctors expected, by returning to the same principles: nourishment, gratitude, and letting go of what the body doesn't need.

Kikumusubi is our way of giving back. We know you can't cook perfectly every day. We know the guilt of shortcuts. We offer one meal — handcrafted, additive-free, koji-infused — that you can choose without apology, for yourself or someone you love.

Three mothers. Eight children. One dream:
to bring Japan's living food culture to the world.

Every choice we make — from the paper around your onigiri to the bowl it rests in — is a small act of preservation.

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For the Earth

Our takeout is wrapped in paper, never plastic — so it folds small enough to slip into a pocket. When little ones fall asleep on the way home, their mother can carry them without a second thought.

Paper wrapping · Zero plastic
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Living Heritage

Our dine-in tableware is antique Japanese lacquerware — some pieces dating to the Tenpo era of the 1830s. Old bowls, still in use.

Antique lacquerware · Est. Tenpo era, 1830s
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Honest Sources

Every seasoning, every grain of rice is chosen with care. We work with producers who share our belief that what goes into food matters.

Hand-selected producers · No shortcuts

We also host seasonal workshops on whole-food health and natural living.   See our Japanese site for details →

Kikumusubi sign

Nagoya, Aichi — Midori Ward

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Visit Us

Address

4-905-1 Kurozawadai
Midori Ward, Nagoya, Aichi 458-0003

Hours

Thursday – Sunday 11:00am – 2:00pm
Dine-in last order 1:30pm  ·  Available until sold out

Hours may change. Please check our Instagram or official website for the latest schedule.

Getting Here

By Subway Tokushige St. (~9 min walk)
By Bus Midori-Kuroishi stop (~1 min walk)

Parking

4 spaces available on site

Reservations

Reservations available via official LINE.
No LINE app? DM us on Instagram.

Reserve via LINE