Lady Moonflower (夕顔夫人, Yūgao Fujin) aka Flower of the Night is a 1976 Japanese film in Nikkatsu's Roman porno series, directed by Katsuhiko Fujii and starring Naomi Tani.

With the photos, he blackmails aristocratic flower arrangement teacher Yumeji, Yuriko's older sister.

[2] Director Katsuhiko Fujii had been a competent director at Nikkatsu, making lower-profile sequels in the Apartment Wife and Eros Schedule Book series until his talent for SM showed through in the Naomi Tani project, Cruelty: Black Rose Torture (1975).

[4] In Lady Moonflower he teamed up with Tani again, with a script by her long-time collaborator, SM-author Oniroku Dan.

[2] Kōyū Ohara would direct a more successful variation on the story of Lady Moonflower, also scripted by Dan and starring Tani, in Fairy in a Cage (1977), which is regarded as one of the best of Nikkatsu's forays into the SM-themed pink film.