It’s a japanese animation movie about a girl going to her grandmother’s house and losing her stuff, and find out there’s been a secret world with people who live off of human’s lost stuff. Then she followed the creature to it’s world and has an “adventure” with it
The Secret World of Arrietty
no, i know it isn’t this because the movie wasn’t from studio ghibli. that movie had a similar style to summer war, and the creature that collected the human stuff looked like a rabbit. also when they were in the secret world, the girl found a sheep plushie that she lost when she was a kid.
oblivion island