"...Maybe it's because I'm shorter..." I thought he was supposed to be taller now? Like, in the earlier chapters he definitely looked to be quite short and
now they've mentioned him being tall a few times.
Plus, if you compare his height to the manager's between chapters 1 and 2, you can really see the difference. Like, compared
his original self standing straight up to
his current self slouching and buckling over. The height difference is almost the same and you can
see his legs in the bending a fair bit in the second image. If you straightened him out, he'd at the
very least be the same height, if not a few inches taller.