About the ancient delicacies of sake
- Concept -
With good old sake "Koshu",
Surprise and excitement to the world.
In Japan, there is a beautiful type of sake known as "Koshu," which quietly deepens in flavor with the passage of time. Like the trajectory of a person's life, Koshu is not just old, but is a "good old sake" that breathes the skills and passion that have been passed down through the ages.
Inishie no Bishu (Fine Wine of the Ancients) is a one-of-a-kind aged sake brand that "re-brews" the value of aged sake that has been carefully cultivated and occasionally refined in various parts of Japan, by nurturing it in its own brewery and crafting it into a new flavor.
The moment you put it in your mouth, your mind will be gently relaxed, and the unexpected aroma and lingering aftertaste will deeply and quietly stir your heart. It goes beyond simple "deliciousness" and will give you an experience that gently accompanies you to a moment in your life.
The brilliance of good old sake,
Now. And to the world.
- Thoughts -
We want to be a brand that delivers new value and excitement to aged sake culture.
"Surprise and inspire the world with our fine old sake."
These words embody all the feelings we have at "Kosho no Biju."
Since the Kamakura period, aged sake has graced the celebratory occasions of nobles and been treasured as a lucky charm. However, as time passes, its appearance gradually fades, and its deep flavor and memories fade from people's consciousness. However, we believe that sake that has lain quietly dormant for a long time possesses a depth and mellowness woven by time that is different from new sake, and a beauty that quietly accompanies life.
"Kosoki no Biju" is more than just a brand that delivers aged sake. It is a new challenge: connecting the pride and traditions of local brewers, cherished in local breweries, to the future. These aged sakes still shine quietly, even after a long time. From among these, we select the most valuable bottles, further nurture them in our brewery, and breathe new life into them through wooden barrel aging and delicate blending. The workings of nature, the passion of our artisans, and our discerning eye come together to bring them back to life as "aged sake that you'll want to drink now." This is a one-of-a-kind aged sake brand that reinvigorates the value of aged sake.
Each bottle of sake carries with it memories unique to that year, and as they intersect with the life of the drinker, a new story is born. Through the experience of "tasting time," we hope to breathe new life into aged sake and connect Japan's aged sake culture to the future. And we hope to deliver deep surprises and emotions to the world.
Takumi Sosei Co., Ltd. Representative Director and President Akihiko Yasumura
-Our promise-
1 | A unique taste honed by time.
We visited over 200 sake breweries across Japan and carefully selected only the most delicious aged sake, with a miraculous remaining rate of 0.001%, from among the rare sakes that have been aged for over 10 years.The 158 carefully selected brands are imbued with the mellowness and deep aroma that comes with time, and our blending and wooden barrel aging techniques go beyond those of any other brewery to create a drink that will thrill all five senses.
Enjoy the art of time that can only be found in the finest sake of ancient times.
2 | Japan's proud quality, recognized worldwide.
Consecutive awards at international competitions prove that our wines are not only appreciated for their flavor, but also for their philosophy and craftsmanship. Gold medals at IWC, Kura Master, and Feminalise, as well as top ratings for five consecutive years, are the culmination of our efforts as Japan's first specialized brewery* of aged sake. We offer a selection of Michelin-starred restaurants and first-class hotels with the pride of our wines.
*Kosoku no Bishu is the first in Japan to obtain a license to operate a liquor storehouse that handles only aged sake.
3 | A moment of spiritual enrichment that accompanies life.
Fine sake from ancient times is a "story" that embodies the climate, history, and the feelings of the brewer. As a gift that carries the feelings of the giver, or as a drink to mark a turning point in life, its profound flavor and storytelling will overlap with memories of you and your loved ones and quietly resonate with your senses. The surprise and emotion that spreads with each sip will quietly fill your heart - we promise to deliver such a moment.
- A storehouse that nurtures time -
"Japan's Aged Sake Breweries" Spinning Aged Sake Culture into the Future
To connect our aspirations to the future in a more concrete form, we have opened Japan's first brewery specializing in aged sake, "Nihon no Koshukura" (Japan's Old Sake Brewery), in Kakogawa, Hyogo Prefecture, together with 10 other sake breweries across the country. This brewery carefully selects rare sake, shochu, awamori, and plum wine from around the country, produced from 1978 to the present, and is a base for creating new flavors that transcend time and breweries. This is "Nihon no Koshukura," which will continue the culture of aged sake into the future.
- Proof of trust -
Our ancient, exquisite sake has been recognized for its value both at home and abroad through awards at international competitions, a rich trading history, and media coverage. Each step we have taken is a trajectory of trust supported by many people. We will continue to live up to that trust and deliver a cup of sake that accompanies each person's life.
Awards
It has won the highest ranking award at international competitions for five consecutive years.
To date, we have won 38 awards for 20 brands in 5 countries and 6 international competitions.
It is highly regarded around the world.







Trading record
Our products are used by a variety of restaurants and companies, including star-rated restaurants and first-class hotels.
- Comments from restaurants that have adopted the system -
THE LEGIAN TOKYO
French restaurant
Even if you don't like sake, you'll fall in love with the pairing possibilities of aged sake.
Media Coverage
2025.08.08 Broadcast on cable TV "BAN-BAN TV"
2025.08.06 Featured in the Kobe Shimbun NEXT
2025.07.26 Featured in "Sake dancyu"
2025.06.16 Published in the Nikkan Kogyo Shimbun Online Edition
2025.06.12 Broadcasted on Sun TV's "NEWS×Information Catch+"
2025.03.09 Featured in the Nihon Keizai Shimbun
2025.03.07 Featured in "Nikkei MJ"
2025.02.01 Published in "Asahi Shimbun Digital"
2024.09.22It was broadcast on TV Asahi's "Sunday LIVE!! "Matsuoka Shuzo's Everyone's Ganbare"
For inquiries about handling or reporting on fine old sake, aged sake, and domestic vintages, please contact us here.







