This revelation recontextualizes the entire series. All along, the Führer’s "son" was the most powerful and oldest of the Homunculi, acting as Father’s eyes and ears within Central Command. The episode’s title, The First Homunculus , is a direct reference to Pride’s status as the original homunculus—the prototype from whom all others were derived.
: The reveal is framed with intense horror elements.
is not an isolated episode—it is a domino that topples the rest of the series. After this episode, the Elrics can no longer operate in secret. Pride now knows their location, their allies, and their weaknesses. The episode ends with Edward barely escaping, thanks to a desperate alchemical trick (transmuting a stone wall to collapse between him and Pride). But victory is hollow. Heinkel is near death, Alphonse is not present, and the military is closing in.