[Atsushi blinks, finding it a little unfair that Eren asked him about his abilities, but doesn't say anything about his own.
Even mocking him for telling.
Well, Atsushi got nothing to hide, and it's not like he hasn't worked with those that claim to be the silent and mysterious type before]

Right. Keep your secrets then.
But don't worry about me. As I said, I can take care of myself, my skills are pretty good after all.