There is an image of this cultivar on the Hosta Library. From the photo on the HL website, it appears to be a small size hosta with wavy, green leaves and very thin white marginal variegation. It bears lavender flowers. This non-registered cultivar was originated in Japan.

Mikiko Lockwood in an article on The Hosta Library titled, A Little About Japanese Hosta Terms defines the term fukurin as margined or edged.