Fullmetal Alchemist: Brotherhood Episode 12 — One Is All, All Is One
Published December 7, 2011
Ed and Al visit Izumi in order to get clues on the Philosopher's Stone. During their stay, the Elric brothers recall how they first met Izumi during a flooding in Resembool, and how they had been formally accepted as Izumi's disciples after being stranded on an island for 30 days. Ed recalls that he and Al had figured out the meaning behind "One is All, All is One." Izumi notices that Ed and Al had attempted human transmutation, concluding this from their movement during hand-to-hand combat training. Realizing that they were not the only ones who had committed the taboo, Izumi tells the Elrics that she also had attempted human transmutation to bring back her child, who died when Izumi became sick during pregnancy. The three make up, bonding over the hardships that they went through after suffering the effects of human transmutation.