Adorably cute, a bit boring and not very surprising, but so cute that I just kept reading, and probably will once the next chapters come out. The style of drawings is absolutely beautiful and charming. I find the story itself a bit confusing - I can see where the shoujo-ai tag came from (even though one of them is a child and the other is an adult, they don't have this mother-daughter/older-younger sister relationship you'd normally expect, too much awkwardness and focusing on certain things instead of the others) and I wonder how it will progress, in what direction. Right now it's... kinda puzzling. In a very soft and warm way tho.
Also, reminds me of this short game, Stray Cat Doors.