It's kind of hard to comment on this one because there just isn't much here - it's quite impressive that this much was made in only a week, but these types of "empty" first builds certainly leave me wanting for more. What we have is pretty neat, though - I think the strongest part is the presentation. The art is stylized and appealing to look at, the sprites and their various expressions ensure that the visuals don't get boring, and the music was solid all around.
Plot-wise, I'll restate that there just isn't much to say - other comments have mentioned that the story could probably stand to be more economical with its scenes, figuring out how to more elegantly present various aspects of the world rather than just expositing them directly in a dialogue scene, but I feel like that's only really an issue because of how little information we do get in this build.
A large part of Isekai's appeal as a genre is in showcasing a whole new world to the reader, and VNs compound on that by adding a visual element to things, but the information we get here is only delivered via dialogue - we don't really get to see anything magical for ourselves, save for Wage's magic sword and the MC's reincarnation - and this lack of information makes the story feel lacking. When reading an isekai story, I'm curious about the world - what life is like in it and how it differs from earth, how the magic feels to use in action sequences, how the MC copes with their new scenario - but by having such a short build which goes so little into these things, I'm mostly just left feeling empty.
That said... I have a soft spot for isekai, and this one definitely feels promising. Like I said, the presentation here is strong - and I think that putting more effort into properly showcasing this fantasy world via the artwork and storytelling, now that you're not bound by the limitations of the jam, could really help elevate this story further. So while there isn't much here currently, I'm definitely going to keep an eye on this work to see what comes of it!