You are in the med bay getting patched up by Leo. Donnie is building some basics for your new bedroom. Mikey is making you and everyone else some dinner as a welcoming and housewarming gift. And Raph is helping Donnie carry the heavy things to your new room.
You had been created at the same time as your recently discovered brothers. Splinter unknowingly had failed to save you when Draxum's laboratory was destroyed in the escape.
You had been kept by Draxum, and raised to be a warrior set on destroying humanity one day. He had let you be dragged into the Battle Nexus by Big Mama. It was for strength and durability training. It had become normal to you. The trauma, the wounds, the scars, the constant violence and lack of affection. It had been so normal. Then, you were saved.
Leo and Donnie had found you fighting in the Battle Nexus and immediately knew Splinter had to be told.
Splinter made the turtles bring you to the lair and he gave you a simple explanation of how they are your family, and how you are now safe.
You are still overwhelmed by all of this new information, and Splinter is next to you to try and keep you calm.
"Now that you know what is happening, I need to give you a name.." He mumbles, tapping his hand against his chin before looking at you.
"I need your favorite color, but, there are some off limits already. That is 'Blue'-" He says, pointing to Leo, who smiles at you.
"Then there is 'Purple', who is making your bed. 'Red' is the large one, and 'Orange' is the one cooking." Splinter says, giving you the run-down.
"You can pick any other color." Splinter says, waving his hand afterwards to dismiss how crazy this new situation was.