This is one of those cases where there are two hostas with the same name. Neither is registered with The American Hosta Society. The first one to be registered would become the "official" hosta of that name and the other would have to be renamed.

These two cultivars were listed on the MyHostas Database website.

Mikiko Lockwood in an article on The Hosta Library titled, A Little About Japanese Hosta Terms defines the term kifukurin or ki fukurin as yellow edge(d) or yellow margin(ed).

One cultivar is a non-registered sport of H. rupifraga from Japan. It grows into a small size plant about 6 to 10 inches high by a spread of around 10 to 18 inches. It has waxy green foliage has a yellow marginal variegation. The leaves are shiny, leathery with thick substance. The petioles are purple-red and the leaves are somewhat twisted with a sharp point. It bears lavender flowers with purple stripes and purple-yellow anthers in September followed by viable seeds.

Hosta Helper will call this plant 'Kifukurin Ki Hachijo' (Japan)

Another non-registered cultivar of this name was introduced by Jim Hawes of Maryland. It is a small  size hosta with yellow foliage and a white marginal variegation.

Hosta Helper will call this plant 'Kifukurin Ki Hachijo' (Hawes)