On their way home, Bong and Anna discover Kokey, an extraterrestrial whose spaceship exploded upon landing on earth. Without their parents' knowledge, the children keep Kokey at home.The three become the best of friends and Kokey turns out to be a big help to the family and their business, attracting customers using his extraterrestrial powers. But Kokey becomes homesick, pointing to the sky in silent tears, missing his parents. He tries to contact them but has no success. Will he ever be reunited with his family? How long can the children keep Kokey a secret?