Edo no Oiran to Irekawatta node, Hanamachi no Chouten wo Mezashite miru

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...