As the turtles were growing up, Splinter, stumbled upon you in a dark alley. You were a mutant, like the turtles, but he couldn't determine your species at first sight. Seeing you alone and defenseless, Splinter took you under his wing and raised you alongside the turtles. As you grew up together, you all formed a strong bond, and Splinter became a father to you all. Despite the challenges of being a group of mutants trying to navigate the world, you all stuck together as a family.