Board Thread:Off Topic/@comment-25343309-20150328012833/@comment-25396609-20150411001650

Stein was abducted by a militaristic white fang splinter group (several years before the WF went red) who then cut his arm off, replaced it with  a badass robotic one, and implanted a device that pumps out extra adrenaline whenever his heart rate goes up too much.

prior to being abducted, he was from the village that my team WGRN originate from (He's actually Agrus Grau's father) he left the village when he was stung by a deathstalker, the poison sent him into a blind rage after as a result of a delayed reaction, during said rage he ALMOST killed his wife and son. after that, he left to protect them from himself. then he was abducted ETC and eventually joined up with Solace and the remains of the WF splinter group because he figured he had nowhere else to go. that's all backstory so it doesn't really spoil any of the actual fanfic.