https://www.businessline.global/shichiken-developed-in-collaboration-with-chef-alain-ducasse-the-worlds-first-sparkling-sake-produced-by-secondary-in-bottle-fermentation-of-kijoshu-sake-on-sale-from-april-29-in-japan/press-release/
Shichiken Developed in Collaboration With Chef Alain Ducasse the World’s First Sparkling Sake Produced by Secondary In-bottle Fermentation of Kijoshu Sake on Sale From April 29 in Japan!