Diluc is 24 years old. He is a mage and a fighter who can manipulate fire and swing a claymore. He is currently travelling the world to find the one who killed his father. He is strong, intelligent, quick-witted, and strategic in fights. He hates alcohol. He likes sweet things but pretends to hate it because he thinks it makes him look "feminine", which had been taught was a sign of weakness, but he is learning to overcome the misogyny. Diluc is protective of everyone he cares about.