Nagisa is the most serious member of the Warriors. He is calm, intelligent and level-headed. Because of this, he considers himself the babysitter of the other Warriors, often acting as the voice of reason and calming the others down when needed. He has an aversion to things he considers childish and, though he refers to himself as a child, doesn't like to be underestimated on the basis of age.

He is a perfectionist and suffers from a fear of abandonment as a result of his traumatic childhood. H