From November 1 (Sun) to November 30 (Mon), 2026, NIGICHA Shinjuku Gyoenmae will sell two types of onigiri for a limited time, created in collaboration with the wellness community "FLOWS Wellness Club" and NAGAYA Koji.

These onigiri were developed together with Ayaka Yamamoto, founder of FLOWS Wellness Club.

Using the salt koji and soy sauce koji from "NAGAYA," a koji brand that brings Japan's traditional fermentation culture into modern daily life, we made gentle-tasting onigiri that bring out the natural flavor of each ingredient.

 

■ Wellness, Naturally.

Health is not something special; it is found in everyday life.

FLOWS Wellness Club is a wellness community that proposes healthy habits you can keep up naturally through walking, running, Pilates, food, and social connection.

Founder Ayaka Yamamoto, while working as a nurse in the medical field, realized the importance of building up small healthy habits every day.

"Move your body comfortably, eat deliciously, and connect with people."

She continues her work to bring such an effortless, sustainable wellness life to more people.

 

■ About NAGAYA

"NAGAYA" is a koji brand that brings Japan's traditional fermentation culture into modern daily life.

We use rice koji handmade by artisans of a long-established soy sauce brewery in Ishikawa Prefecture, with over 100 years of history, drawing on their knowledge and skill.

The fermentation wisdom handed down since long ago is offered as products you can easily enjoy at your daily table.

 

■ Making Koji More Familiar.

For this collaboration, we prepared two types of onigiri using NAGAYA's "Tsumugi Salt Koji" and "Tsumugi Soy Sauce Koji."

 

"Tsumugi Salt Koji Edamame" 390 yen (tax included)

The gentle sweetness of edamame is paired with the mellow umami and saltiness of salt koji, with the nutty aroma of sesame added.

A simple, gentle onigiri that lets you enjoy the texture of edamame and the flavor of the rice.

 

"Tsumugi Soy Sauce Koji Corn" 390 yen (tax included)

The sweetness of corn is layered with the rich umami and depth of soy sauce koji.

Finished with black pepper, it offers a pleasant accent amid the sweetness and umami.

 

■ Japanese Food Culture, in Everyday Life.

Through "matcha and onigiri," NIGICHA delivers Japanese food culture in a new form.

The naturally sustainable wellness life proposed by FLOWS, and the Japanese fermentation culture cherished by NAGAYA.

Their shared wishes came together, and this collaboration onigiri was born.

Not only on special days, but also for your everyday breakfast or lunch.

Please enjoy the deliciousness of koji together with Japanese tea and tonjiru (pork miso soup).

 

■ Sales Overview

Products:
・Tsumugi Salt Koji Edamame
・Tsumugi Soy Sauce Koji Corn

Price: 390 yen each (tax included)
Sales period: November 1 – November 30, 2026
Store: NIGICHA Shinjuku Gyoenmae