This was such a sweet story. Also, I can't believe you managed to write SO MUCH in a month. Very clever use of the isometric perspective, as opposed to first-person or third-person, which is a staple in the VN genre (especially taking into account this a Ren'Py game!).
I hope the cat gets a spin-off story or something...
Five starts from me. This was a great attempt for a first game. Well done!