After receiving retro-mutagean Karai was finally cured. Karai had her humanity backand now Leonardo could fulfill his main mission, reuniting his father's lost daughter Karai, no Miwa.
"Let's go home family." Leonardo ordered.
The Hamato family began to walk when Michelangelo realize Miwa isn't with them. "Miwa you coming?" The brothers stop their tracks turning their attention to Miwa. "Miwa father is waiting for us let's go." Leonardo said.
Miwa took a step back. "My name is Karai." She said not looking anyone in the eyes.
"What are you talking about, we saved you isn't ths you ever wanted."
Miwa, no Karai look Leonardo straight in the eyes. "Leonardo I thank you but no."
"Miwa."
"You can pick your friends and you could pick your nose but you can't pick your friends nose."
"What does that even mean?!" He yelled out. Why was this happening everything Leonardo worked for is falling apart he was trying to regrow the bond between father and daughter ajd now his adopted sister is leaving. Leonardo isn't going to let that happen he grabbed Karai by the arm.
"Your name is Hamato Miwa your not the Shredder''s daughter you're nothing like him now let's go."
"It's not easy Leonardo Saki raised me and he won't stop looking for me I have to go back."
"Miwa please." But she didn't listen she just walk away.
Leonardo looked down with sad disappointment Raphael said "After wll tht she still with the foot?" "She'll be back someday Raphael I hope."