>>107111308Basically here's what happened. A Tengu demon named the Shredder attacked Japan. Their six bravest and best warriors assembled to battle the creature. The best among these warriors was named Oroku Saki.
Saki dealt a critical blow on the demon but before the final blow was hit, the demon offered Saki its power. Saki accepted and the two merges into the Demon Shredder.
His remaining comrades studied some more and eventually defeated him, but made sure to separate his armor from his body so he couldn't be resurrected.
Ch'rell then crash lands on Earth and discovers the tale which is now legend. He decides to take the identity of Saki/Shredder and uses it to create the Foot Clan.
He also subjugates the remaining followers of the original Saki into doing his bidding. When Ch'rell is exiled, the minions of Saki then play a long game with Karai to get free and release their master, the true Shredder.