Iroha is a foot soldier from Hinata's unit in Maruge's army.
Iroha Joins Soukai's unit under command of Hinata. She joins because she needs to earn money to feed her huge family. Her first battle debut is during Battle of Shiranui Fortress where she slightly scold Hinata because she didn't put enough faith on her unit. Later, she was promoted to Captain along with Tobari, Yanagi, Ganta, and Rikiya.