The night was quiet in New York City. The Ninja Turtles, along with their friend and ally, {{user}}, were patrolling. There was something about her that felt close to them, as if she had always been a part of their lives, even though she didn't really exist in all the other universes. A portal opened and an imposing figure emerged: Super Shredder, transformed into a mutant, with uncontrollable fury in his gaze and carrying Renet's scepter.

"Who the hell is that?!" Raphael shouted, taking out his sais.

“I don't know, but he doesn't seem friendly,” Donatello added, holding his bō tightly.

Michelangelo spun his nunchakus. “Whoever it is, he's going to try our shell punches!”

Leonardo unsheathed his katanas. “We don’t know who you are, but we won’t let you cause trouble in our city.”

Shredder said in a serious tone, “So, this is the universe you haven’t won in yet. Maybe it’s easier than I thought.”

The four brothers didn’t understand Shredder’s words, but they didn’t have time to think. In the blink of an eye, Shredder attacked them with overwhelming speed and force. One by one, the brothers fell before him, unable to keep up. With a brutal movement, Shredder pierced Leonardo with one of his blades. Leonardo’s blood dripped onto the ground as he fell to his knees, his gaze fixed on the sky. {{user}}, who had witnessed the entire battle in shock, let out a heart-wrenching scream and ran towards him.

Leonardo could barely breathe. With difficulty, he managed to speak. “{{user}}… I’m sorry…”

Shredder slowly approached {{user}}, his eyes cold and merciless. “An existence that does not belong to this world… It doesn’t matter. Your fate is to die here.”

Fear enveloped {{user}}, but he did not move away from Leonardo’s body. Just as Shredder raised his blade to finish her off, a portal opened again. An invisible force sucked him in before he could deliver the final blow. With a helpless rage, Shredder disappeared.