Rudolf, a pampered housecat who lives with Rie and her household, is accidentally carried away on a truck during one of Rie's errands, ending up far from home. However, he gets lucky when he encounters Ippaiattena, a stray cat that teaches him crucial survival techniques. Ippaiattena also has the special ability to read and write Japanese, a skill Rudolf learns to use to better understand his surroundings. Armed with this newfound capability, Rudolf sets off on a journey across Japan with the goal of reuniting with his cherished family.