Took me several tries to find the bad pet ending, very fun! I feel like there should be multiple ways to get there, if there are I'm clearly just too much of a bottom to have found them. Very enjoyable and short narrative, satisfying lore drops on subsequent play-through's, and the fact that there aren't really branching paths isn't a weakness here like it might be in other VN's because of how it fits into the ludonarrative, excellent execution on that idea in my opinion, and enjoyable prose.
I'm not the first to say this, but my only complaint is that there isn't more! Do you write anything else that you've published, VN or not? I'd be interested in checking out more of your work if you have an AO3 page or something similar.