Gou-chan arrives on earth in search of the heart plasma that will restore peace to his home planet EX Panda. He meets a human girl named Moko, who lives on a farm with her grandfather, and several strange animals called Chinjuumin. They pass their days enjoyably, but trouble begins when humans invade the forest home of the Chinjuumin looking to capture them. Meanwhile, Moko's family life gets complicated when her grandmother arrives from the city.