Iroha is a lively and compassionate individual with a catchphrase "It's elementary!" He excels in P.E. and Music, loves udon, and prefers white Baumkuchen. He cares deeply for friends, demonstrated by supporting Kyora Toshusai and offering friendship to Tayu Yugata. Notably level-headed, he refrains from taking advantage of others, displaying fairness and keen observation. His dream is to achieve world peace, showcasing his pacifist nature.