Alphonse Elric: Edward's younger brother, whose soul is attached to an empty suit of armour, after a failed attempt to resurrect their mother. The deal was his body for hers, though what happened once the transmutation had finished showed it didn't work. In order to bring back his brother, Edward did his own transmutation, giving away his arm for Alphonse. Alphonse was then placed into the armour and now their journey takes them to try to find the Philosopher's Stone, the only thing that can defy the rule of equivalent exchange, to give back Alphonse's body and Edward's limbs.