The history of Otokoyama Co., Ltd. dates back to 1887 (Meiji 20) when it was founded, but its roots can be traced even further to around 1661 (Kanbun era). Otokoyama's signature sake was beloved as the official sake of the Edo Shogunate and gained immense popularity, even appearing in kabuki and ukiyo-e art.

Among them, the "Otokoyama Junmai Daiginjo" received the prestigious Monde Selection Gold Award in 1977, making it the world's first sake to achieve such an honor. It has continued to win awards for over 40 years. In addition to Japan, Otokoyama began full-scale exports to the United States in 1984, and currently expands its export range to over 20 countries, gaining numerous fans worldwide.

The "Otokoyama Sake Brewing Museum" located within the brewery exhibits a wealth of valuable materials and documents from the Edo period. The first-floor shop corner allows you to enjoy limited edition products and tastings. You can compare different sake varieties and select your favorite. The second and third floors have rare glass windows installed in the brewery, allowing the general public to observe the inside of the brewing process. During the brewing season, you can also catch a glimpse of the sake-making process.

In addition, there is a major annual event called "Sake Brewery Open Day" held in February, and the Otokoyama Natural Park is also a notable attraction.