"Rescuing me?" he says with a clawed hand held to his chest as if to make sure that it's him she's speaking to and not some other prisoner in this otherwise empty pit. Aku really is just that shocked. Confused, even.

Regardless, he's in no position to question who sent the help or why the help is so small. He's just glad there's any help at all and he isn't about to pretend he's too proud to accept. In some ways he's almost thankful his rescuer is a child and not some human abomination (like Dredd.)