[ The comment, even though it's rightfully unimpressed, gets a soft laugh from Tatsumi. ]

It seems so. I'm sorry to be a bother.

[ Part of him is still inclined try to push himself the rest of the way through the task of ascending the stairs, but... no, he knows better by now. Even if he especially wouldn't like to burden HiMERU. So, he pushes himself to his feet. ]

I do appreciate your assistance, of course. If there's any way I can make it up to you, please let me know.