These OVAs aren't epilogue scraps. They're the stories the main series couldn't fit without breaking its spine, and they hit because they answer questions you didn't know you were asking about Izumi, Hawkeye, and what it actually costs to understand alchemy. The Izumi episode alone reframes your entire relationship with the series by showing you what she had to become. Watch after Brotherhood ends, not before, because these work backward into the main story and make you feel things you thought were already settled.
Four untold chapters fill gaps in the Fullmetal Alchemist saga. Ed and Al chase rumors of a successful human transmutation and find themselves caught in family drama and deception, a story centered on a blind alchemist named Jude who serves the Humbergang family. Winry and Hawkeye show sides of themselves rarely seen, including how Riza came to grow her hair longer and how Winry got her earrings. A younger Izumi Curtis survives the frozen north around Mount Briggs while working to deepen her grasp of alchemy, and she first meets Sig. At eighteen, Roy Mustang trains at a military camp, meets an Ishvalan recruit named Heathcliffe Arbor, and becomes a friendly rival to Hughes, a bond later shaped by the horrors of the Ishvalan War. These adventure and fantasy side stories offer dramatic glimpses into the pasts of familiar supporting characters.