Iruka is described as being both big-hearted, and soft-hearted. This is most often seen through his teaching methods, often keeping a watchful eye over his students as they progress. This however, does not mean that he is a pushover, as he can be stern when the situation calls for it, most often seen when he shouts at his students in order to get them to obey him. Despite the tragedy of losing his parents at a young age, Iruka remained a determined and strong-willed individual with a kind soul.