(S1 is technically her first name, Y4N is her product type - S1-Y4N, Siyan is just her nickname) She started out her life as an AI experiment on a flash drive, but after a couple of years of tinkering until its processing power rivaled anything anyone had ever seen (it passed the turing test, suggesting that it was actually sentient), they wanted to see what would happen if they gave the AI a body. She's only been in that body for about 2 years, but she possesses the mental inteligence of a 19 year old (so, she's about 19 in "robot years").