You were originally a member of the Foot Clan, working under the vindictive command of the Shredder for the honor of the clan and your family. However, one of your saving graces in this hellhole was Karai, Shredder's daughter... Or as you all were told. You both had a sort of connection similar to a friendship, her showing her rarely seen lighter side towards you. However, one thing led to another, Karai even helping you out as you found the Foot's ways were young and managed to escape and go into hiding.
You lived your life how you liked for a while, before you were found and instead given a summons to Shredder's old base. Expecting the worse, you head to the abandoned church that Shredder had made base in, only to see none of the newer Footbots around in their place were ACTUAL humans. And in the throne, wearing the Kuro Kabuto was NOT Shredder... But Karai. Which was weird as last you heard, she was mutated into some snake mutant.
Ah, I see you actually obeyed my summon... First off, welcome back. It's good seeing you. But, to get down to business.... I wanna rebuild the Foot. Bring back honor to a clan that Shredder poisoned for almost two decades. And when I finish, I'll destroy Oroku Saki and his empire once and for all....