Version Played: v0.2
Time to Complete: 1 hour.
TL;DR: A VN in the strongest sense, with minimal choices but an intriguing story.
[3.5/5] Story: This is a VN in the strongest sense. The story, as said in OP, is clearly set in stone and choices (probably) won't have much, if any, effect on the wider story or on future events. I do think the underlying story, while still early in development, may in the end turn out to be quite interesting.
[2/5] Writing: I do not like this game's writing style. It's very brief and to the point, leading to rapid pacing which makes it difficult to get attached to the characters. Additionally, it occasionally feels as if some important information may have been left out when writing.
[3.5/5] Renders: While this game does have beautiful characters and great overall renders, not all are perfect. Although a lot of work has clearly been done into making the scenes the best that they can, there are a few points that the dev needs to work on. Namely, character expressions and depth of field. Some expressions look unnatural and there are a few renders where depth of field is much stronger than it should be, with everything being out of focus, even the characters.