Paris, nowadays. Tough Dog is a world famous rapper. Challenged to a rap battle by The Kalixte, a rising star with millions of followers, he is under pressure. A week before the battle, Tough Dog wakes up in the body of a cute little kitten, whereas the kitten’ spirit lands in Tough Dog’s Body. To reverse the situation back to normal he has to ask Kim, a shy young girl for help. In exchange, Tough Dog will teach her to become popular. The young girl and the rapper, in a kitten’s body, are in for a ride!