Night Tail is a steamy hentai anime adaptation of the popular adult RPG from doujin circle Kurasuke Warehouse (さーくるくらすけ倉庫). By day, cheerful sisters Yoru and Asahi run a cozy café with helpers Shirou and Kouhei, living a peaceful life. But when night falls, they transform into sexy, erotic cosplay-clad heroines known as Night Tail—warriors who enter dreams to battle and exorcise seductive dream demons (muma/succubi-like entities) that prey on sleeping victims. Blending fantasy action with explicit erotic encounters, the series follows these beautiful girls as they fight corruption while succumbing to tempting, lewd situations in the dream world. Expect intense h-scenes, transformation sequences, and a mix of heroism and humiliation in this adult-oriented OVA.