An alien named Go-chan crash-lands on Earth with a single mission: locate the heart plasma needed to save his dying planet EX Panda. His search leads him to a rural farm where he befriends Moko, a girl living with her grandfather, and introduces her to the Chinjuumin, gentle creatures inhabiting the nearby forest. What begins as peaceful days exploring nature and building friendships quickly unravels when outsiders discover the forest's hidden inhabitants and move in to capture them. At the same time, tensions in Moko's family intensify when her grandmother arrives from the city, forcing the girl to navigate conflict on both fronts. Go-chan's mission becomes secondary to protecting the only friends he's made on this strange world. The story balances childhood wonder with the harsh reality that peaceful places attract unwanted attention, asking whether Moko and Go-chan can defend their found family before everything changes forever.