A young man who appears in the tales of a world divided into four nations that individually control their own unique Crystals. Ace was taken in at an early age, and has since been raised as a cadet to become Agito, the legendary savior or saviors. As an Agito Cadet he trains with Class Zero at the Akademeia, and wields a deck of magically infused cards as his weapon. Although he may appear cool and collected, he can be quite rash when overcome with emotion. Ace refers to Arecia, who heads Akademeia's Sorcery Division, as "Mother."
A young man who appears in the tales of a world divided into four nations that individually control their own unique Crystals. As a cadet in training to become Agito, the legendary savior or saviors, he fought alongside Class Zero to deter the Militesi invasion during the liberation campaign and protect the Vermilion Bird. Unfortunately, however, Ace's request to have his closest friend Izana on the battlefield would result in the latter's untimely death. The loss of Izana caused tensions to run high within the group, as Izana's younger brother Machina had only recently joined Class Zero.