100% agree with your claims here and really appreciate your feedback!
The first half of the game is something I'm very proud of and don't see much need for improvement, though the second half, while not awful, is needlessly rushed and way too fast.
While I personally like the ending, I can understand why some might not, considering the first half of the game is mainly just slice-of-life containing comedic banter between the characters and Kishimoto's introspective inner monologues.
This was my first time writing a proper story and I've improved a lot since and the next visual novel that I'm currently working on is definitely going to be a lot better! Though I definitely want to come back to this story some day and maybe even re-write it, as I think the concept is creative and the characters are likeable. Maybe I could slow the pace down, make the game longer, have the eighth day be a bigger part of the story and introduce more characters as the game goes along!
I'm beyond happy that you not only played my game and enjoyed it, but also took time to leave such valuable feedback!
Thanks!