Riding the wave of economic downturn, Night King Tribe's undercover team investigates reports of newly emerging adult entertainment venues, leading them to a run-down wooden apartment in Tokyo's old downtown district, where a retro Showa-era atmosphere still lingers. Inside these cramped four-and-a-half tatami mat rooms, married women await customers. The retro setting creates a unique experience blending taboo excitement and fantasy. Featuring four mature women—Risa Sakurai, Makoto Tsuji, Akemi Kano, and Aya Sasaki—each showcasing their distinct charm, this production from STAR PARADISE's "Master of negotiating real sex at a soapland" series captures the allure of a bygone era, drawing viewers into its nostalgic and sensual world.