Norimichi KUSUMI, a sake brewer at Kusumi Shuzo, a well-known brewery by its brand "Kiyo-izumi" (literally, clean fountain) in Washima Village, Santo County, together with Kiyoshi KAWAI, a master brewer, hit on the idea to restore the original Kameno-o rice when they were told about superiority of sake made from Kameno-o rice.
三島（さんとう）郡和島（わしま）村の、『清泉（きよいずみ）』で知られる久須美酒造の酒造家である久須美記廸（くすみ・のりみち）は、杜氏である河井清から、むかし亀の尾で作った日本酒が素晴らしかったとの話を聞いて、亀の尾を復活させることを考えた。