The swordsmith Amon accidentally comes across an infant and its dead mother in the forest. Although he is initially overwhelmed by the situation, he finally decides to take the boy with him and thus save him from certain death. Ten years after this fateful encounter, the boy from that time, Gai, is apprenticed to Amon. While making a sword, however, there is a tragic accident in which Gai loses his right arm. Amon then decides to use a sword called Shiryuu to make an artificial arm for Gai. Thus, it begins…
You can now watch SWORD GAI: The Animation online on the following streaming providers in the United States.
| Writing | Toshiki Inoue | Comic Book |
| Art | Keita Amemiya | Original Series Design |
| Visual Effects | Keita Amemiya | Character Designer |
| Directing | Tomohito Naka | Series Director |
| Production | Shinnosuke Wada | Producer |
