Overpowered Swordsman

Year 1706 Jaisu Keedu the strongest and powerful swordsman in human history defeated the demon king. After the battle of demon king, The two satanist appeared in front of the swordsmans and knights. Where Jaisu belongs, He fought the two Satanist and defeated them. But, he didn't kill them. The two Satanist perform a fusing ritual to defeat Jaisu. Year 1725 Jochiro Seuch attend to the super elite swordsman school (Keedu Academy).