Prince of the Askran Kingdom and a member of the Order of Heroes. He is the older brother of Princess Sharena and the son of King Gustav and Queen Henriette. A kind and serious man who is eager to maintain peace, Alfonse thinks of himself as not being the "prince" type, and joined the Order of Heroes even when Askrian people said it wasn't royal-like and his father expressed outrage. He finds it hard to trust others, regarding the summoned Heroes as allies rather than friends.
