Hiroshi UEHARA, a former official appraiser of alcoholic beverage, has clearly said, "As far as I know, it was Koikawa Shuzo that had dedicated themselves most diligently to reviving the Kameno-o brand, though the brewery had no positive intention to take the advantage of Kameno-o brand as a topical subject."
元酒類鑑定官であった上原浩は、「そのことの話題性を積極的に利用しようとは考えていないようだが、私の知るなかで、亀の尾の復活にもっとも熱心に取り組んでいたのは鯉川酒造である。」と言い切っている。