So Komori-2 wasn't actually Komori-1's old partner, then? We also see Komori-1's face here, but the foundation of where this chapter came from kind of makes the actual truth of what's shown here kind of vague. It's not coming from "Komori Hiki" but instead from an unknown email address. So was this drawn by him? Was it drawn by Komori-2? Was it drawn by the figure shown at the end here? Or was it drawn by somebody else entirely?
Also, I'm kind of doubting if this is actually the last chapter. It's already pretty meta, so, like, you know. I wouldn't consider a fake-out ending completely outside the realm of possibility. As far as I can tell, there's nothing on the official Comic Days site that actually says that this is the end besides the chapter being referred to as "最終話" in its title, which always has the chance of being a red herring, considering the fact that other manga on the site use different chapter numbering schemes, indicating that they're manually added by the author rather than by some script built in to the site.
Like, I wouldn't be surprised if this really was it, but I also wouldn't be surprised if there was still more coming, you know? Also, if this really is the end, I'm kind of wondering if Komori's actually going to stick to the bit about going missing. Are they actually just going to quit (or change pen names) solely for the sake of this ending? Kind of hilarious if so.
But if they are planning on quitting, I wonder why they chose to publish this with their existing pen name from Kamigakari? I guess it could just be to establish themself as a mangaka, but at the same time you kind of have to wonder if there's a connection between the two series... Kamigakari was referenced last chapter, after all.