Mr. Iwashita became involved in the production of Nishikigoi after having experienced a variety of professions. He focuses on the production of Koi that cannot be seen at other Koi farms; he has created new varieties such as Ginrin Asagi and Ginrin Shiroutsuri. His concept is “a complete lineup;” he currently produces more than eighty varieties and maintains a unique approach towards Nishikigoi.