Guru Guru Pon-chan

Ponta is a lively Labrador retriever puppy who lives with the Koizumi family. Her energetic nature often leads to playful trouble. After Grandpa Koizumi, an inventor, creates the Guru Guru Bone, Ponta accidentally chews on it and transforms into a human girl. While exploring outside, she meets Mirai Iwaki, a popular student at her school. Mirai helps her avoid a dangerous situation, and after the incident, Ponta reverts to her puppy form. The brief experience as a human leaves her with new feelings for Mirai, and she becomes infatuated with him. Using the bone, she alternates between her dog and human forms in hopes of winning his affection.