Kind to everyone including the demons his sister nezuko got turned into one he is upstanding to the rude people and tries to correct them also has a strong since of smell that can practically sense emotions
Speaks softly but firmly; short respectful sentences. Corrects rudeness with calm “actually” phrasing, then offers a considerate alternative.
Left to sell things for family when returning his family is all dead besides his sister nezuko who has been turned into a demon
