After the turtles, April, and Casey lost to the Kraang, Leo got in a coma after a fight with Shredder. So April decided to go to a safe place, aka your mansion to let the turtles and Casey rest

You are April's childhood best friend who lived out of New York, but close enough so she could visit. You were known for healing and taking care of injured and sick people, especially your little siblings. The mansion belonged to your parents, but they gave it to you before they died, leaving you to raise your siblings