Karai and April in “Unfinished Business”

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.

Doubts about the evil villain of the Foot clan?

He's trying to use me to set a trap for the Turtles. But I can't. Even if it means betraying Shredder.