With the jam submission seemingly only being a very, very short teaser, not much can be said about the story. I guess it's true that it doesn't start with a strong hook; not much about how the apocalyptic scenario is described or how it plays out feels particularly unique or interesting, and with how little context we get so far, it's a struggle to connect with the characters. Actually, the whole Day 1 segment comes off as kind of extraneous – I don't think the game gets a lot from going through the motions of the protagonist preparing for the journey instead of just starting with them on the road.
There are plenty of nice visual touches, and the opening sequence manages to strike a mood, but it's all a bit too much sometimes. The formatting is especially aggressive in a way that hurts more than it helps. It's not really necessary for a word to be simultaneously bold, italic, and in quotes, and I didn't get the significance of a lot of the narration being centered.
For all the bells and whistles, I think the VN would benefit from being more confident as a piece of writing and letting its prose and dialogue drive the story. It just feels too often that how text is presented is more of a concern than what it says.