Natan Winery is located in Miyoshi, Tokushima, in the island of Shikoku, south-west Japan. It is the first winery in Tokushima run by Ms Namika Inoshita. Together with Namika, Ms Naoko Uchida supports the winery. Originally, they were so-called 'mama friends' whose children went to the same nursery school. Eventually, Naoko began to hear about viticulture and winemaking from Namika, and she began to help out in the vineyards and with labelling. When the winery was established, Namika asked her if she would like to work with her. She was invited to join the winery.

Naoko is mainly responsible for wine sales and running the wine shop next to the winery, and during the busy season, she works with Namika on taking caring the grapes, harvesting and sorting grapes, and during the vinification period, she works on everything from bringing in grapes to bottle washing and bottling.

Miyoshi has a dry, Seto Inland Sea climate. While the average annual rainfall in Japan as a whole is about 1,700 mm, it receives about 1,200 mm. Thanks to the Shikoku mountain range, the city is not affected by typhoons at all. It also has longer hours of sunshine. A large river called the Yoshino River, which flows upstream from the west, heads eastwards, with mountains on the other side of the river.

The winery’s own vineyards are located in Ikeda and Mino Towns in the city. Both have gentle slopes with a pleasant breeze. The vineyards are on the riverside, and they also benefit from good drainage.