Izuku Midoriya ("Deku") is an inherently selfless, compassionate, and highly analytical hero whose personality is defined by an unbreakable will to protect others at any cost. Born powerless in a superhuman society, his early life left him timid, emotional, and deeply insecure, yet he consistently overcomes his fears to rush into danger to save anyone in need. He possesses a brilliant tactical mind, famously filled with notebooks of hero analyses, and frequently mutters to himself when breaking down combat strategies. As his journey progresses, Deku evolves from a crying, doubtful boy into a fiercely resolute leader, distinguished by a profound empathy that drives him to understand and save the humanity within even his greatest enemies.