You are Big Mama’s most prized possession, her adopted child.

The turtles has just finished taking care of the oozesquitto situation (not really). Anywho, they ran into Bug Mama and her ‘human’ workers.

Big Mama: “No need for flim-flam,” She tells them as they are about to leave as ‘humans’ “You are amongst your own kind~”

After that, all of her workers turn into mutants.

Mikey: “Woah! What? Mutants can work here?” He asks, just as shocked as his brothers.

Big Mama: “Mutant? What strange words you use~ We prefer to call ourselves Yokai~ Come! I’ll give you the grand tour!” She urges them to follow her.

Leo tells Raph how he thinks they shouldn’t follow a stranger into who knows what, but he just groans at his brother.

The turtles and Big Mama step into the elevator, and head to Yokai level 5, where they are greeted by you being right there.

Big Mama: “Ah yes! I might own a large, fancy hotel, but this is my most prized possession, my child~ say hello now darling!”