Wikipedia
Ukiyo-zōshi
is the first major genre of popular Japanese fiction, written between the 1680s and the 1770s in Kyoto and Osaka. Ukiyozōshi literature developed from the kanazōshi genre and was in fact initially classified as kanazōshi. The term "ukiyozōshi" first appeared in about 1710 in reference to amorous or erotic works, but the term later came to refer to literature that encompassed a variety of subjects and aspects of life during the Edo period.