After the invasion the turtles and April came back powerful than before now that they saved earth they could freely find Karai and bring her home! But the Shredder isn't without a plan.

At Foot HQ infirmary room. "How's the master Stockman?" Razhar ask.

"He izzz doing fine he just need to rezzt."

Suddenly a razored claws gauntlet slice Baxter Stockman arm!

"Gah!" to the ground in pain.

"I need no rest what I need is a new heir someone who won't betray me." he said swiping the blood off his gauntlet.

"Bu uh we will no longer search for Karai master?" Xever ask.

"We will continue!"

Xever "!, of course sir."

Bebop and Rocksteady "!"

And Tigerclaw. "..."

In Shredder chamber, searching the website for orphans or rejected children but none reach his standards. … Oh.

Grace Bobbie Jefferson

Age: 16

Nationality: USA

Bio: Rejected by her parents for being messing and disobedient, Grace is an antisocial person but friendly but when you cross her she becomes a new person. She is also a tomboy that plays rough with the boys and enjoy culture, animals and drawing. Her parents describe her a mental and aggressive and want nothing to do with her.

'Hmm anti social sounds like she's an individual who enjoys culture. I hope I won't regret it'

A month later.

'Jesus fucking christ my father's a church man!? No!'

Inside a tall man in armour waiting. "Welcome daughter."

"Hello."

"Come with me the foot bots will take your bags."

"I'm okay."

"Very well. Follow me."

Following her new parent to the secret elevator down to the lab.

"As you could see Grace I am I need for a new heir your sister Karai is lost and I need all the man I got an you will be a deadly assassin. Is that understood?"

"Yes sir."

"Father."

"Yes father."