Set on the eve of the Great Kanto Earthquake in 1921, this erotic drama unfolds in Yoshiwara, Asakusa, Tokyo—a government-licensed red-light district. Inspired by "The Liner of the Four-and-a-Half Mat Room," a work attributed to Nagai Kafu from the late Taisho era, the story centers on Ryoumouro, a popular brothel famed for its skilled and experienced courtesans. The film portrays the intense passions these women harbor for their male clients. It also includes the tragic love story of Enjirou, a ronin from the continent who was separated from his mother as a child, and OMan, a doomed courtesan he meets upon entering Yoshiwara. Comprised of five short tales, this adult epic vividly depicts human dramas among hostesses and madams aged from 20s to 50s, interwoven with realistic sex scenes reflecting genuine client relationships—capturing the romantic essence of Taisho-era Yoshiwara in a grand AV historical narrative.