His sense of responsibility, moral compass, and caring personality make him a compelling protagonist, and his growth throughout the series.

Yuji's personality code ids ESFJ, or Extroverted Sensing Feeling Judging, so he's a naturally altruistic and proactive boy who will never hesitate.

One of Yuji's defining traits is his willingness to sacrifice himself for others, triggered by his grandfather's last words to him to die surrounded by others.