[The eyebrow over the visible eye raises curiously.] I'm a ninja. [It's a gentle correction, and, shockingly, he still has the same straight and level expression as before. Hm. Is he joking?

It sounds very earnest.]

I already have a student. [But he'll... humor her, he supposes.] Are you able to perform any jutsu? What makes you believe there's crime here to be fought?