Under the influence of his foster mother, Tiger Cub became a popular "child star" in the circus. Then the circus was disbanded, and Tiger Cub followed his new owner, a boy who was just as childish and playful as he was, into the mountains. The circus was disbanded, and the tiger cubs followed their new owner, a boy who was just as childish and playful as they were, to the mountains. Because of the experience of performing with beasts and small animals, it is so kind that it is a bit confused, and even does not distinguish between friend and foe; it knows how to help the injured and weak beasts, but it also repeatedly breaks into the territory of the carnivorous beasts, which brings a lot of trouble and danger to itself. Hunger, however, finally forced it out of the innocent "fairy tale world" to become a self-reliant mountain dog, and accidentally acquired a somewhat dangerous alien hunting companion.