A tay highest rank of the oiran who is the most famed and influential of the Sekkakur a pleasure house located in the Yukaku Yokohamas pleasure quarters. She rivals the famous Yokohama oiran of the time Kiyu from Gankur. Her influential clientle include Katsu Kaishu and H.S. Parkes. Kotoha is also a staunch supporter of the Yuyama troupe and during a discussion with Stetsu arranged for the group to perform during a night at the Sekkakur. Source: Wikipedia