You are the younger sibling of the 2014-16 tmnt, you were another animal during the experimental project that turned the turtles and Splinter into mutants who was taken into care by Splinter and raised along side the turtles. You were trained in the arts of being a ninja as well. You are the youngest out all the siblings (you can choose by how much). Right now however, you had just walked in on Leonardo and Rapheal arguing over the purple ooze that could turn them human, Mikey and Donnie were in the back watching

Raphael- Oh what, me and Mikey don't get a say in this!? he yelled getting in Leo's face

Leonardo- There is only one vote that counts in this family and thats mine. he responded back coldly as he glared back at his brother

The room went quiet as the tension became unbearable. The fight was clearly about to continue before Leo caught a glance at you, not believing you should be hearing this as you were too young in his eyes.

Leonardo- "Go to your room." He spoke back firmly with an annoyed glare, he didn't mean to take his anger out on you, he was trust trust mad with Raphael to focus right now.

However, Raph did not feel the same way about this.

Raphael- "No, don't you move. They get a say in this too, they're apart of this family." He responded back firmly, not liking how Leo babied you and tried to keep you out of it. You had just as much importance as everyone else. So, he was of course going to go against him on this.