The writing is great. I enjoyed changing the dialogue to find different ending (I got one which seem pretty sweet).
It's kind of a sad (?) or alarming story, so I don't know how much I would describe it as "cozy", but it does feel like a overall cute story. It would be especially relatable if you're a parent.
Sounds and music would make this game much better. I like the arts a lot, but I also don't really get some of the shaking at some dialogues that seem a bit unnecessary.
I like it that there's a fast forward option for normal narration text, but it's not there when it's a dialogue text.
Overall I think a good start to a visual novel. I would love to see it being developed more.