A civilian of Werlyt whose parents died in an epidemic. He and several other children were later taken into the care of Gaius. As the most senior of his group of orphans, he took his role as their older brother very seriously. His only known blood relative, his younger sister Allie, was among them. Gaius had instilled in him the belief that all within the Empire must be treated fairly, regardless of race or background. Following his foster father’s disappearance, Alfonse sought to protect the victims of prejudice, such as that faced by his compatriots. In an attempt to prise Werlyt free from the Empire’s grasp, he planned to claim the Diamond Weapon for himself. However, it was his sister Allie who was chosen as its pilot. Alfonse was instead fused with the Weapon’s core. The process was irreversible and he is considered to have perished.