Iroha lived in the same city as her childhood friend Shuusuke until she was 5. Years later she returns and befriends Nao and sits next to her in class, unknown to each other the relationship they share with Shuusuke. Iroha lives on hill near the Takanashi household which allows her to spy on Shuusuke with her telescope whenever she pleases. Iroha can often be seen wearing glasses but doesn't normally wear them in public, she also wears her hair down now contrary to the pigtails that she wore when she was a child.