 Another noted female manga author, Kaoru Kurimoto, wrote "shōnen-ai mono" stories in the late 1970s that have been described as "the precursors of "yaoi"".The term "yaoi" is an acronym created in the late 1970s by Yasuko Sakata and Akiko Hatsu from the words .This phrase was first used as a "euphemism for the content" and refers to how "yaoi", as opposed to the "difficult to understand" "shōnen-ai" being produced by the Year 24 Group female manga authors, focused on "the yummy parts".