Interesting novel!
The art is very nice, you have a good style!
I'm not very familiar with Ren'Py, so I don't know what these hints on the top left mean. At first I thought that these were unlockable dialogues for the next playthrough. But do I understand correctly that these are just side comments from the main character?
For some reason I thought that in the next game, the next cycle, we will know and remember more, so the plot will somehow develop more, and I will be able to influence the outcome of the game in some other way.
The music sets a very pleasant atmosphere. The overall artistic design - my respects!