Guru Guru Pon-chan

Ponta, a curious and energetic Labrador retriever puppy, is transformed into a human girl when she nibbles the Guru Guru Bone, an amateur invention created by her grandfather. As a human, Ponta meets Mirai Iwaki, the most popular boy at school, and is saved by him from a speeding car. However, when the transformation ends, Ponta finds herself smitten with Mirai, and the power of the Guru Guru Bone becomes her ticket to switching between dog and girl, but only to win Mirai's affections.