I may not be human, but I am fortunate enough to have my humanity. Save Kirby.
[As Donnie leaves, he looks down at the black-and-white picture of his original human self and his late wife, Tang Shen, with their infant daughter Miwa between them.]
All my life I was raised to believe Shredder was my father, that Splinter was the enemy. So when Leo told me Splinter was my true father, I couldn't accept it. But then I began to have doubts about Shredder's honor.
I retained very little from my old life. But this I will never let go, my daughter.
[Karai is shocked to see the full picture of her late mother's arm around Hamato Yoshi, and the black-and-white one of herself as an infant between a human Splinter and Tang Shen]
I'm afraid it goes much deeper than our rivalry over your mother. The bitter feud between the Hamato and Foot clans lasted centuries. Oroku Saki was the son of the enemy. But he was just a child, so my father gave him shelter. We were raised as brothers, and rivals in all things as brothers are. But that rivalry soon turned bitter when we met Tang Shen- your mother. Jealousy became hatred when Saki learned of his true heritage. He swore vengeance and rebuilt the Foot clan. One night, Oroku Saki struck. The blow that was meant for me struck your mother instead. Shredder blamed me and in his rage, he burned our home to the ground, leaving me to my fate. He took you away from me.
Karai (silently seething): After all this time haven't you wanted revenge?