One is All, All is One Hagane no renkinjutsushi : Season 1 Episode 12
TV-14 MBC South Japan Broadcast 24m
Aired: June 21st, 2009 @ 12:00 AM EST on MBC South Japan Broadcast
While visiting Izumi, their childhood teacher, the Elrics recall the early difficulties of grasping equivalent exchange. They also discover she shares their intimate knowledge of alchemy's greatest taboo.
