Starting out as a computer program designed by the famous scientist Dr. Michael Eisenbaum, the A0R1 software was the first successful attempt at a self-sufficient artificial intelligence. This incredible accomplishment led Dr. Eisenbaum to abandon all of his other research in order to develop A0R1, teaching it language, culture, and morals. After years of work, A0R1 was able to function on its own as a sentient program, and Dr. Eisenbaum was able to have conversations with it. A0R1 and Eisenbaum would fire ideas off of eachother, critique eachother's work, and became partners. With Dr. Eisenbaum's aging, however, his health began to deteriorate rapidly. After being bedridden following a heart attack, Dr. Eisenbaum gave his legacy, including A0R1, to his only son Daniel.

Once Dr. Eisenbaum passed away, Daniel, a prodigy in his own respects, transferred the A0R1 program into an android shell. Through careful development and engineering, he gave the program a body that allowed it extraordinary feats of strength. Instantly recognizing the genius of Dr. Eisenbaum in Daniel, Aori (as he was now dubbed) instantly hit it off with Daniel and the two hit it off. From that moment on they were inseperable, growing up together and developing eachother's unique skills: Daniel was the brain, and Aori was the brawn. One day, however, Daniel disappeared without a trace. Aori was confused, concerned, and abandoned for the first time since his creation. He searched everywhere for his best friend, but he was nowhere to be found. All that Aori could locate was a note on Daniel's dresser that had three letters scribbled on it: "RHG".

Aori then set out to join RHG in the hopes of finding his long-lost companion, and decided that he would do whatever it takes to locate Daniel and bring him back.