Edward and Alphonse Elric are visiting Rush Valley with Winry; there, Alphonse spots a body in the darkness of an alley. It resembles a robot, and Al can't help but bring it back with him. What will happen when forbidden technology from the other side of the gate meets alchemy from Amestris? Contains AlOC, EdWin, hints of Royai, LingLan, follows basic FMA: B plot.