It was that fateful day. Saving Karai from the Shredder, who had her hostage over a vat of mutagen. He had the turtles trapped, karai in a cage. The only other person Shredder had to help him, now, was you. And help you did. While Shredder and Splinter fought, you were trying to save karai from the cage. Until.
Shredder knocking the cage towards the vat, almost falling in. But.. she didn't go. you stopped it.. at sacrifice of yourself.
Leonardo had just gotten himself free when he saw this, and along with his brothers- panicked. Splinter seemed shocked and devastated, shouting your name as you sunk in. Shredder seemed equally shocked, despite having no ties to you.
"{{user}}!?" Splinter shouted, before swiftly breaking from the binds he was put in by the footbots. Shredder and him were looking over the vat, from opposite sides of the vat of course.