Rudolf lives a comfortable life in Gifu, Japan. Still, as the saying goes, curiosity overtakes the kitten, prompting him to venture beyond his home's four walls. Accidentally carried into a cargo truck's rear and dropped in Tokyo, he meets Ippaiattena, an experienced alley cat who holds a vital talent: understanding human speech. Rudolf"s adventure is rich in Japanese culture, and his tale honors the marvel of exploration—the instant you grasp that you possess the key to unlock everything. During his travels, he sees festivals, shrines, bustling streets and tea houses, appreciation of Japan. His story celebrates discovery, spark when you realize you hold the key to unlock.