The Cat Returns (2002)
Dir. Hiroyuki Morita
TCR is a spin-off from Ghibli's Whisper of the Heart (1995) film, and while it's not wholly necessary to have watched WotH prior to TCR, it's recommended, nevertheless, because two of TCR's characters were first introduced in WotH. The earlier film is also where you get the back-story of smartly dressed cat Baron Humbert von Gikkingen. If you don't care about any of that, though, you can enjoy TCR on its own merits.
It's the story of high-school student Haru Yoshioka, a young girl who seems to be constantly running late for class. She's often disorganised, has a messy room, and is a little clumsy. But she has a kind heart, is a good friend, and looks out for animals in need, all of which are positive, inspirational traits.
A selfless act at a busy road earns her the gratitude of the Cat Kingdom, which turns out not to be as welcome a blessing as it may sound.