The protagonist of this new story of Othello's mother is a sweet Labrador dog named Ponta, known as Ponchan, whose life flows peacefully together with the not-so-normal members of the Koizumi family. The dog's vitality is a real problem for Mrs. Koizumi and her eldest son Soichiro, who would like to get rid of her as soon as possible. However, Mr. Koizumi and his daughter Yuka have a completely different idea, as they are very fond of the dog. But grandfather Koizumi came up with an amazing invention to resolve the situation: a bone that allows dogs to talk! This way Ponchan will also be able to have his say on the issue. Bad luck has it that the dog, attracted by the bone, swallows it without the knowledge of her family. In this way, without realizing it, she finds herself transformed into a little girl and under this guise she meets Mirai, a beautiful boy who saves her from a moving car.