History-loving hostess becomes a legendary oiran! Anna, an active history-loving hostess, wakes up one day to find out that she has replaced Oiran Yamabuki! Determined not to return to the present age, Anna decided to become the pinnacle of an Edo-era Oiran, with her wisdom and good spirit, something which has long been a longing of hers. However, immediately afterward, another Oiran who is competing for popularity ruins a precious kimono that was given to her by the customer... 歴史好きなキャバ嬢として活躍していた杏奈は、ある日目覚めると江戸の花魁・山吹に成り代わっていた！　キャバ嬢時代に培った接客の技術と歴史の知識で、江戸時代でもNo.1花魁を目指せ……！