Siren! Beautiful Melody of Death - S1.E97

Both warriors use their techniques, but Seiya is overpowered and falls to the ground, yet he was able to land several hits on Siegfried's heart. Saori, Shiryu and his friends deposit their Cosmo into Seiya, making Siegfried doubt is Hilda is right, or if Athena is true justice. Hilda suddenly arrives and attempts to finish off Seiya, but Siegfried stops her to confirm his doubts. They attack again, with Seiya's Meteors pushing back Siegfried's Dragon Bravest Blizzard and attacking his heart. Seiya has finally won and goes to retrieve the Sapphire. But a man, playing a...