[That compliment does manage to fluster him again, slowing down his scrubbing, and he stammers before he speaks.]

Y-you mean because it is your civic duty! One's... looks have nothing to do with this. [Then he pauses for a moment before adding.]

Also, don't you remember my name? It is Kiyotaka Ishimaru! [She should know his name... right? Aren't they... classmates...? Ishimaru blinks and focuses on his scrubbing.]