[He stands stunned there for a moment, looking like a wide-eyed statue in his saluting position, as Hinata's words sink in. His smile starts to fade.]

You... you do not remember? How could it be? [He gives a confused blink.] Was it your injuries? You must have sustained a blow to your head that had an effect on your memory!

[That sounds like the only logical way someone could lose their memories! Kiyotaka attempts to regain his confidence as he clings to that theory.]

Then perhaps my name will ring a bell! Kiyotaka Ishimaru, the Ultimate Public Morals Committee Member! A fellow hard-working spirit! [He remembers their first conversation fondly. He's sure that Hinata must have that memory tucked away somewhere, just waiting to be reawakened!]