Each Niigata breeder has strong characters and their own unique policy. Some breeders pursue the beauty of Nishikigoi with an emphasis on Gosanke (Kohaku, Taisho Sanshoku (Sanke) and Showa), while some are always challenging to create a new variety. The breeders at Koshiji Koi Farm commit to creating a wide variety of Koi, and their ponds are always filled with color. They are the original creators of Ginga and Benikumonryu and play a significant role in stabilizing new varieties.