Part 4/9:
As chaotic battles ensue, Seiya aligns himself with the warrior, firmly deciding to fight against the encroaching evil. During this escapade, he learns that his sister was taken not for harm, but out of a misguided attempt to protect her, as she, too, harbored latent Cosmo energy. As the threads of destiny intertwine, themes of brotherhood and loyalty are cemented when Seiya meets Sienna, the human reincarnation of the goddess.