Neko no Ongaeshi (The Cat Returns)

http://www.nausicaa.net/miyazaki/neko/synopsis/page1.html

The story opens with an alarm bell ringing and a hand reaching out to turn it off. Under the blanket, Haru moved into a more comfortable position; then realized that she was late for school, and quickly rushed to get ready, albeit without first doing a vanity check. She greeted her mother in the kitchen who told her to eat first. When Haru refused, she playfully tempted Haru by biting into her own topped-up bread and saying how delicious it was, while Haru looked on in a very jittery manner. Finally she said that it wasn't fair and ran off.