One of the shinobi sworn to protect Tsumugi, Iyo is a ninja serving Nobunaga Oda during the Sengoku period. Though far tougher than most, she has a long way to go in mastering the art of stealth. Fully equipped with shinobi tools, she is adept with gunpowder, bombs, and flaming kunai. Iyo has a great respect and love for Tsumugi, and would give her life in a heartbeat to help her out. She does not always extend the same love to herself, however, as she struggles with self-doubt and insecurity. One of Iyo's few indulgences is taking a bath after training.