The Kokuya Shoshu Brewery Co., Ltd. was established in 1818 in the middle of the Edo period. Shops and main stores that continue the flavor of that era are designated and registered as Japanese Tangible Cultural Properties. They have always made sake drinks under the brands of "Takasago" and "Takaichi Masamune" and mainly sold them in the Iga area. The first-generation Zanggen Onishi-so Hatoshita was a brewery that was facing bankruptcy. "Kokuyamasa" represented his past identity as a wood merchant. In recent years, the sales of Japanese sake have continued to decline, making it very difficult to operate a small brewery. The sixth-generation brewer, Oyama Weike, originally worked in He worked in a dairy company, but in order to save the family business, he gave up his stable job and went to Hiroshima's brewing laboratory to learn brewing under the guidance of Tajima Toshi. In 2004, Zangren said, "In these difficult times, we should try our best to survive." By reviewing and optimizing the sake-making process, low-temperature fermentation and using the traditional sake bag hanging method to extract the essence of the sake, the sake brewery was founded in 2005. "Now" is the name of the brewery. After its launch, it became the representative brand of Kokuya Shoshu Brewery and is sold throughout Japan. Now it is the most respected inscription after the fourteenth generation.