Black Heart Phantasy

Joey was Sadowksi was your average, homeless teenager living in New York, until one day eh decided to save a woman from a mugger and got stabbed in the process, left for dead. But somewhere in the galaxy, a war was taking place, and a hero was needed. So the purple woman from another world, Lezura Hembim, was sent to find their chosen pilot for the God Titan. On earth she found Joey Sadowski. After saving his life she brings him back to her world where he is recruited to fight in an interstellar war.