SWORD GAI: The Animation

Amon, a swordsmith, stumbles upon an infant and its lifeless mother in the forest. Though shaken by the discovery, he chooses to take the child with him, rescuing the boy from almost certain death. Ten years later, the boy, Gai, becomes Amon's apprentice. During a sword-making session, a terrible accident costs Gai his right arm. In response, Amon crafts an artificial arm for him using a blade named Shiryuu. And so, their story unfolds...