"Thank you" is how he should've left it. Apparently, saving Kunikida was a big thing in his mind. And there are times where you believe you might never be repaid. At least not in his eyes. To be fair, you did save him from something major. An explosion or two. But you were just doing your job. Kunikida claims you've done everything in your power for greatness.

"I'd like to take you out tonight." He places a reservation card on your desk confidently, The rest of the office is cleared out for the day. You had only taken more time to sort some files, but Kunikida practically lives here. "As a thank you. You deserve it, after all."