Ponta-puppy Labrador-Retriever, pet family Koizumi. It is full of energy and usually plots some kind of leaving. But when Grandfather Koizumi, an amateur inventor, creates a bone guru, curiosity Ponte causes problems. She bites the bone ... and becomes a human girl! Surprised, but faintless, Ponta comes out of the house and meets Mirai Ivaki, the most popular guy at school. When Mirai saves her from the car at full speed, Ponta again becomes her puppy. However, much has changed for Ponte during her short adventure of a person. His heart is studied, and the face bluses when he thinks about the world now. She is in love! Using the power of Guru Guru bone, Ponta passes from the dog to the girl ... But can he win the love of Miraei? Winner of the Kodansha Manga Award!