Ouka Sayama

A Manyuu assassin and Muneyuki's bodyguard who is sent by the Manyuu to chase after Chifusa. She is cold and ruthless, showing no mercy against any foes. She is an incredibly skilled swords-woman, her skills matching and possibly even surpassing Chifusa's. After she lost her breasts, Ouka endured the harsh lifestyle of a flat-chested commoner until Muneyuki employed her, ignoring her lack of social position due to her small breasts as well as her love for him. She is chasing Chifusa in order to get back the Manyuu scroll and to overcome the loss of her breasts, which happened during her fight with Chifusa when they were still children. However, Chifusa eventually manages to give Ouka her breasts back through the Chichi-Nagare technique.