Did Ryder stole Aiya from the wiped out planet based on the scene with Valentine? Then further developed Aiya?
Yes we can assume Ryder stole the components on that planet that made the Arbiter upset and with that he made an artificial life, Aiya. Ryder was basically a vagabond doing anything to make money (●'◡'●)ノ
Did Ryder stole Aiya from the wiped out planet based on the scene with Valentine? Then further developed Aiya?